This is the accessible text file for GAO report number GAO-03-343 
entitled 'National Airspace System: Better Cost Data Could Improve 
FAA's Management of the Standard Terminal Automation Replacement 
System' which was released on February 04, 2003.



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Report to the Honorable Ellen O. Tauscher, House of Representatives:



January 2003:



NATIONAL AIRSPACE SYSTEM:



Better Cost Data Could Improve FAA’s Management of the Standard 

Terminal Automation Replacement System:



GAO-03-343:



GAO Highlights:



Highlights of GAO-03-343, a report to the Honorable Ellen O. Tauscher, 

House of Representatives.



NATIONAL AIRSPACE SYSTEM

Better Cost Data Could Improve FAA’s Management of the Standard 

Terminal Automation Replacement System.



Why GAO Did This Study:



To enhance the capacity and safety of the national airspace system, 

the Federal Aviation Administration (FAA), within the Department of 

Transportation, is acquiring 74 Standard Terminal Automation 

Replacement Systems (STARS). STARS will replace some outdated air 

traffic control equipment. Since 1996, when FAA initiated this major 

computer hardware and software acquisition, the scope and estimated 

costs of STARS have changed many times. FAA now estimates that STARS’s 

remaining costs will total about $2.54 billion. GAO was asked to assess 

the reliability of FAA’s life-cycle cost estimate for STARS, determine 

the impact of STARS’s estimated costs on future FAA budgets, and 

identify any alternatives to STARS that FAA is considering. GAO based 

its analysis on published FAA cost data and the guidance FAA uses for 

managing major acquisitions.



What GAO Found:



The reliability of FAA’s life-cycle cost estimate for STARS is 

uncertain. This estimate includes estimates of the program’s 

development, operation, and technology upgrade costs, shown for the 

next 6 fiscal years in the figure below. The development cost estimate 

is based on the contractor’s projections, which FAA has not yet 

independently analyzed as its guidance directs. Furthermore, baseline 

data in cost performance reports that FAA obtains from the contractor 

are not accurate because the data do not reflect the current status of 

the contract. As a result, FAA is limited in its ability to manage the 

contract effectively. FAA plans to address these problems. In addition, 

the program’s operation and technology upgrade cost estimates are based 

on limited experience with STARS and extend many years into the future. 

However, the estimates do not reflect these uncertainties.



Estimated STARS Funding, Fiscal Years 2004-2009



[See PDF for Image]

[End of Figure]

 

For fiscal years 2004 through 2007, the years for which FAA provided 

budget information, STARS’s estimated costs should have a declining 

impact on FAA’s budgets because the program’s development is nearly 

over and its operations are still limited. For fiscal years 2008 

through 2030, the impact of STARS’s estimated costs on FAA’s budgets 

is unknown because it is still too soon in the budget cycle for FAA to 

have developed detailed budgets for these years. After deploying STARS 

at the 74 terminal and support facilities included in the program, FAA 

could use STARS, another contractor’s technology, or a combination of 

the two technologies for the nearly 100 remaining facilities. FAA is 

exploring the feasibility of combining the technologies and expects to 

announce its plans in April 2003.



What GAO Recommends:



To improve FAA’s management of STARS and of subsequent terminal 

modernization programs and to provide the Congress with more reliable 

information for oversight, GAO recommends that the Secretary of 

Transportation direct the FAA Administrator to maintain accurate, 

current baseline data; review baseline data within 6 months of any 

major modification to ensure that the data reflect the current status 

of the contract; and prepare a rigorous life-cycle cost estimate that 

identifies the level of uncertainty.



To view the full report, including the scope

and methodology, click on the link above.

For more information, contact Gerald L. Dillingham at (202) 512-5555 

or Keith A. Rhodes at (202) 512-6412.





Contents:



Letter:



Results in Brief:



Background:



Reliability of FAA’s Life-Cycle Cost Estimate for STARS Is 

Uncertain:



Impact of STARS’s Estimated Costs on FAA’s Budgets Is Expected to 

Decline through Fiscal Year 2007:



After Deploying STARS at 74 Facilities, FAA May Modify Its Approach for 

the Remaining Facilities:



Conclusions:



Recommendations for Executive Action:



Agency Comments:



Scope and Methodology:



Appendix:



Appendix I: GAO Contacts and Staff Acknowledgements:



GAO Contacts:



Staff Acknowledgments:



Table:



Table 1: Proposed Funding for FAA’s Total Facilities and Equipment 

Budget and for STARS’s Development and Deployment:



Figures:



Figure 1: Standard Terminal Automation Replacement System (STARS):



Figure 2: Life-Cycle Cost Estimate for STARS, Fiscal Years 2004-2030:



Figure 3: Allocation of Facilities and Equipment Funding for Fiscal 

Year 2004 in FAA’s Capital Investment Plan:



Abbreviations:



ARTS: Automated Radar Terminal System:



DCMA: Defense Contract Management Agency:



DOD: Department of Defense:



FAA: Federal Aviation Administration:



STARS: Standard Terminal Automation Replacement System:



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Letter January 31, 2003:



The Honorable Ellen O. Tauscher

House of Representatives:



Dear Ms. Tauscher:



On November 17, 2002, the Federal Aviation Administration (FAA) began 

using the Standard Terminal Automation Replacement System (STARS) to 

control air traffic at the Philadelphia air route traffic control 

center, the first “busy” FAA facility to use this version of the new 

system.[Footnote 1] FAA’s current plan is to procure 74 STARS systems, 

including 70 for terminal facilities and 4 for support 

facilities.[Footnote 2] STARS will replace outdated computer equipment 

that is used to control air traffic within 5 to 50 nautical miles of an 

airport.[Footnote 3] With STARS, air traffic controllers at these 

facilities will receive new hardware and software that produce color 

displays of aircraft position and flight information. In the future, 

FAA will be able to upgrade the software to provide air traffic control 

tools, such as those that will allow better spacing of aircraft as they 

descend into airports. STARS is complex, costly, and software-

intensive. Since 1996, when FAA initiated STARS, the number of systems 

scheduled to be procured has ranged from as many as 188 to as few as 

74,[Footnote 4] and the program’s cost and schedule have also varied 

considerably. Over the years, we have reported on these changes, most 

recently in September 2002.[Footnote 5]



As agreed with your office, this report addresses the following 

questions:



* How reliable is FAA’s estimate of the life-cycle costs to develop and 

deploy, operate and maintain, and upgrade STARS?



* What impact will STARS’s estimated cost have on future FAA budgets 

given competing demands for funds to enhance aviation safety, security, 

and capacity?



* What alternatives to STARS is FAA considering?



In addition, you asked whether STARS falls under the termination 

provisions of Public Law 104-264, as an acquisition that is more than 

50 percent over its cost goal or behind schedule. Our analysis of the 

law and its legislative history indicates that STARS is not subject to 

these termination provisions. According to our analysis, the 

termination provisions apply to acquisitions initiated after October 9, 

1996, the date of the law’s enactment. Because FAA approved the initial 

acquisition plan for STARS in March 1996 and signed the contract with 

Raytheon Corporation in September 1996, STARS is not subject to those 

provisions.



This report covers cost and performance issues related to FAA’s 

procurement of STARS for 74 terminal and support facilities.[Footnote 

6] To conduct our work, we reviewed FAA’s 5-year Capital Investment 

Plan, which proposes funding for programs to modernize the national 

airspace system. We also analyzed data from cost performance reports 

that the STARS contractor developed for FAA. However, we did not 

independently verify these cost and performance data.



Results in Brief:



The reliability of FAA’s life-cycle cost estimate for STARS is 

uncertain. According to FAA, the costs to develop and deploy,[Footnote 

7] operate and maintain, and upgrade STARS will amount to about $2.54 

billion for 74 systems for fiscal years 2004 through 2030. More 

specifically, the costs of completing STARS’s development and 

deployment will amount to about $153 million for fiscal years 2004 

through 2008, the costs of operating and maintaining the systems at 

those facilities over their useful lives will add another $1.46 billion 

for fiscal years 2004 through 2030,[Footnote 8] and the costs of 

upgrading STARS technology will amount to about $930 million over the 

same period. FAA’s development cost estimate is based largely on the 

contractor’s recent proposals and projections, which incorporate the 

costs of new work specified in major modifications to the STARS 

contract. FAA has not yet independently analyzed these proposals and 

projections as its guidance directs and therefore does not know whether 

the development cost estimate of $153 million is reliable. Furthermore, 

FAA has not worked with the contractor to incorporate the requirements 

and costs of the new work into cost performance reports, which it 

receives from the contractor. These reports are intended to provide FAA 

with accurate, current data for monitoring and overseeing the 

contractor’s progress and for estimating the program’s remaining costs, 

but FAA is not using the reports because they do not reflect the 

current status of the contract. FAA is now analyzing the contractor’s 

cost data and working with the contractor to align the cost performance 

reports with the current status of the contract. FAA expects to 

complete these tasks in the spring of 2003 and then should be able to 

use the cost performance reports as intended. The reliability of FAA’s 

estimates of the life-cycle costs to operate, maintain, and upgrade 

STARS technology is unknown, primarily because FAA has limited 

experience with STARS equipment and the estimates extend nearly 30 

years into the future. However, despite these uncertainties, FAA has 

expressed its cost estimates as point values, rather than as ranges. As 

a result, the estimates may imply more certainty than is appropriate. 

Moreover, in this instance, the use of point values limits disclosure 

of the program’s investment risks. We are making recommendations to 

strengthen FAA’s management of STARS, and FAA officials indicated that 

the recommendations were in line with the agency’s ongoing and planned 

efforts. These recommendations, we believe, will also help FAA better 

manage the planned modernization of terminal facilities that are no 

longer included in the STARS program.



According to FAA’s latest budget planning documents, the impact of 

STARS’s estimated costs on FAA’s budgets will decline for fiscal years 

2004 through 2007; for later years, however, the impact of these 

estimated costs is unknown. Since FAA has nearly finished developing 

STARS, the program’s development costs are expected to decrease over 

the next 4 fiscal years, while its operation and maintenance costs are 

expected to grow with increased deployment. According to FAA’s 

documents, the funding proposed to develop and deploy STARS represents 

4 percent of FAA’s proposed $3.06 billion facilities and equipment 

budget account for fiscal year 2004 and smaller percentages for fiscal 

years 2005 through 2007. This account funds the development, 

procurement, and installation of equipment to help increase the 

capacity and improve the safety, efficiency, and security of the 

national airspace system. Given these small and declining percentages 

for STARS, the program’s estimated costs should, over this period, have 

a small and declining impact on other aviation safety, security, and 

capacity efforts funded from the facilities and equipment account. 

FAA’s budget planning documents also show that as FAA deploys STARS at 

more facilities, more funding will come from the agency’s operations 

account, which supports training and compensation for the controllers 

and technicians who operate and maintain STARS. However, the impact of 

STARS’s estimated costs on FAA’s budgets for later years is currently 

unknown because it is too soon in the budget cycle for FAA to have 

developed detailed budgets beyond fiscal year 2007. In addition, as we 

previously noted, FAA has limited operational experience for projecting 

STARS’s budgetary impact, and long-range cost estimates are inherently 

uncertain.



FAA is committed to deploying STARS at the 74 terminal and support 

facilities included in the STARS program, but for the nearly 100 other 

facilities that remain to be modernized, the agency could deploy STARS, 

another contractor’s hardware and software, or a combination of STARS 

and the other contractor’s technologies that are currently being used 

in FAA terminal facilities. FAA knows that each contractor’s technology 

works independently, and FAA is assessing the feasibility of operating 

Raytheon’s STARS display system with the processing system from 

Lockheed Martin Corporation’s Common Automated Radar Terminal System, 

which was recently installed at some terminal facilities. Combining the 

two technologies could be cost-effective because it would allow FAA to 

use both the customized display system that accounted for a substantial 

portion of STARS’s development costs and the recently acquired 

processing system. FAA plans to announce the results of this assessment 

in April 2003.



Background:



STARS will replace controller workstations with new color displays, 

processors, and computer software at FAA and Department of Defense 

terminal air traffic control facilities. (See fig. 1.) FAA’s goal for 

STARS is to provide an open, expandable terminal automation platform 

that can accommodate future air traffic growth and allow for the 

introduction of new hardware-and software-based tools to promote 

safety, maximize operational efficiency, and improve controllers’ 

productivity. FAA believes that STARS will facilitate efforts to 

optimally configure the terminal airspace around the country, exchange 

digital information between pilots and controllers, and introduce new 

position and surveillance capabilities for pilots.



Figure 1: Standard Terminal Automation Replacement System (STARS):



[See PDF for image] - graphic text:



[End of figure] - graphic text:



FAA has given high priority to STARS. Both the past and the current FAA 

Administrator have emphasized the program’s importance to enhancing the 

capacity of the national airspace system. In addition, STARS is 1 of 19 

programs on FAA’s list of top programs. Recently, FAA gave priority 

consideration to STARS so that it could meet its commitment to the 

Congress to deploy STARS at the Philadelphia terminal, the first busy 

facility, on November 17, 2002. Furthermore, according to FAA 

officials, the agency remains committed to funding STARS until 

completion, even if that means postponing the funding for other 

programs. Agency officials have indicated, for example, that if the 

fiscal year 2004 budget falls below the level shown in FAA’s planning 

documents, funds from other programs would likely be cut to fully fund 

STARS.



For each acquisition program that FAA undertakes, it officially 

estimates the program’s life-cycle costs (from development and 

deployment through operations and maintenance), schedule, benefits, and 

performance in a formal budget document called the acquisition program 

baseline. FAA uses this document--which its acquisition decision-making 

body, the Joint Resources Council, must approve--to decide whether to 

fund the program and, if it is funded, to monitor its progress. FAA 

also uses the approved acquisition program baseline to develop a 5-year 

budget-planning document, called the Capital Investment Plan. Program 

managers rely on the acquisition program baseline to oversee the 

program’s progress and to ensure that no action is taken that would 

breach the approved baseline. To support their oversight, program 

managers typically require contractors to deliver cost performance 

reports, each of which includes a performance measurement baseline for 

assessing the contractor’s progress in meeting the contract’s cost, 

schedule, and technical performance goals. For STARS, FAA has one 

contract with Raytheon, which accounts for 82 percent of the funding 

approved in the acquisition program baseline. Most of the remaining 

funding is used for contracts that support FAA’s internal program 

management.



For guidance in managing its major acquisition programs, FAA relies 

largely on two documents--its own Acquisition System Toolset, a “one-

stop acquisition information system” on FAA’s Web site that contains 

the agency’s official acquisition policy and guidance, and the Defense 

Contract Management Agency’s (DCMA) guide on implementing earned value 

management.[Footnote 9] The Acquisition System Toolset includes policy, 

guidance, instructions, examples, best practices, lessons learned, 

references, and other related information tailored to each type of 

procurement contract. The earned value management guide provides 

information on how to use cost and performance measurement to manage 

acquisition programs.



FAA funds STARS primarily through two of its budget accounts: (1) 

facilities and equipment and (2) operations. The facilities and 

equipment account covers the costs to develop, procure, and place the 

new equipment in operation.[Footnote 10] After the equipment has been 

fully operating for at least a year, the funding source shifts to the 

operations account, which covers the costs to support and maintain the 

equipment over its life cycle. Operations costs are, in large part, 

personnel costs--for the controllers who operate and the technicians 

who maintain the equipment. Planned product improvements and technology 

upgrades are primarily funded from the facilities and equipment 

account.



Since 1996, when FAA initiated STARS, it has spent approximately $1.2 

billion, or about 86 percent of the funding budgeted for the program, 

and it has twice approved major changes to the program’s cost and 

schedule estimates. First, in October 1999, FAA modified its 

acquisition approach (from off-the-shelf software only to a combination 

of customized and off-the-shelf software) and increased to 188 the 

number of facilities scheduled to receive STARS. We reported on these 

changes in September 2002.[Footnote 11] At that time, FAA also 

concluded that it did not have adequate funding to deploy STARS to all 

188 facilities with the remainder of the STARS funding. Instead, FAA 

decided to deploy STARS to 74 terminal and support facilities. The 

selected facilities had frequent equipment failures, were new, or had 

the digital radar needed to operate STARS. FAA has since reduced the 

total number of facilities to about 170. The agency is currently 

studying options for modernizing display systems at the nearly 100 

remaining facilities and is identifying the additional costs of 

upgrading the other facilities with STARS or an alternative system. The 

STARS program office stated that these additional costs, together with 

the funds already committed to STARS, would more than likely exceed the 

$1.4 billion originally planned. The program office is in the process 

of developing options and estimates for these additional sites.



Reliability of FAA’s Life-Cycle Cost Estimate for STARS Is Uncertain:



FAA has estimated the life-cycle cost for STARS, including the costs to 

develop and deploy systems to 74 terminal and support facilities and to 

operate, maintain, and upgrade the systems. However, the reliability of 

these cost estimates is uncertain. If FAA’s estimates are not reliable, 

both the agency and the Congress will be limited in their ability to 

project and compare the costs and benefits of completing STARS and 

modernizing other facilities as well as in their ability to budget 

realistically for other capital investments.



FAA Has Estimated STARS’s Remaining Life-Cycle Costs:



According to FAA’s estimates, the agency will need about $2.54 billion 

for STARS over the remaining life of the program. As indicated in 

figure 2, FAA will need about (1) $153 million for fiscal years 2004 

through 2008 to complete the development and deployment of 74 systems; 

(2) $1.46 billion for fiscal years 2004 through 2030--or about $54 

million a year, on average--to operate and maintain the 

systems;[Footnote 12] and (3) $930 million to upgrade STARS technology 

over the same period. FAA’s operating cost estimate assumes that 

STARS’s operating costs will grow with deployment through about fiscal 

year 2007 and will subsequently keep pace with inflation, at least 

through fiscal year 2009. FAA expects the costs of technology upgrades 

to more than triple between fiscal years 2007 and 2008 because of a 

technology update cycle, which will peak when the hardware and software 

are due for replacement. This projection assumes that STARS software 

will be upgraded every 3 years.



Figure 2: Life-Cycle Cost Estimate for STARS, Fiscal Years 2004-2030:



[See PDF for image] - graphic text:



[End of figure] - graphic text:



Note: These data are from FAA’s March 2002 acquisition program baseline 

for STARS and have been adjusted to reflect the effects of inflation. 

Numbers may not add because of rounding.



FAA does not yet know to what extent its estimate of STARS’s remaining 

development costs is reliable. The estimate is derived from the 

contractor’s proposals and projections, which reflect the costs of 

major modifications to the contract made since May 2000. However, FAA 

has not yet independently analyzed and validated the proposals and 

projections and therefore cannot assess the reliability of the 

development cost estimate.



FAA obtains monthly cost performance reports from the contractor, which 

the agency should be able to use both to oversee the contractor’s 

performance and to estimate the program’s remaining development costs. 

However, FAA does not use these reports because they are not current. 

More specifically, their central component, the performance management 

baseline--which establishes performance, cost, and schedule milestones 

for the contract--has not been updated since May 2000 and therefore 

does not incorporate the effects of major contract modifications 

approved since that date. For example, the September 2002 cost 

performance report does not reflect FAA’s March 2002 reduction in the 

scope of STARS from 188 to 74 systems, and the report does not include 

the costs of new work that FAA authorized between May 2000 and 

September 2002. Consequently, the report indicates that STARS is on 

schedule and within 1 percent of budget, even though, compared with the 

program envisioned in May 2000, FAA is now under contract to modernize 

fewer than half as many facilities at more than twice the cost per 

facility.



Cost Performance Reports Do Not Meet FAA’s Criteria:



The cost performance reports for STARS do not meet the criteria for 

such reports established in the guidance for managing major 

acquisitions that FAA has adopted from DCMA.[Footnote 13] According to 

this guidance, cost performance reports are valid only when:



* a reliable performance measurement baseline is established and 

maintained (i.e., regularly updated and validated),



* changes to the baseline are carefully controlled (i.e., negotiated 

and approved before being authorized),



* an integrated baseline review[Footnote 14] takes place within 6 

months of a contract’s award or significant modification, and:



* contract oversight occurs regularly.



FAA and the contractor have established a performance measurement 

baseline for the STARS contract, but they have not satisfied the 

remaining criteria. The baseline has not been updated since May 2000, 

and FAA has not validated it. For example, FAA has not asked an 

independent organization, such as the Defense Contract Audit Agency, to 

verify the costs in the contractor’s cost performance reports by 

tracing the costs back to the contractor’s accounting system. In 

addition, FAA has not controlled changes to the baseline because, 

between May 2000 and September 2002, it approved up to $179 million in 

authorized, unpriced work--that is, additional work that FAA agreed to 

let the contractor perform without first negotiating or independently 

verifying the costs. Furthermore, the additional tasks and costs have 

not been incorporated in the baseline, even though the DCMA guidance 

calls for processing contract modifications expeditiously and 

incorporating them in a timely manner to maintain the baseline’s 

integrity. Although the DCMA guidance does not define “a timely 

manner,” experts generally agree that this term means no longer than 3 

months. FAA has not maintained and controlled the baseline because, 

according to program officials, it has been “schedule driven”--

committed to deploying STARS at the Philadelphia terminal by November 

17, 2002. FAA is currently analyzing the contractor’s cost data and 

working with the contractor to incorporate modifications in the 

performance measurement baseline.



Although the DCMA guidance calls for performing an integrated baseline 

review within 6 months of awarding or significantly modifying a 

contract, FAA has not performed such a review of STARS since August 

2000, even though it has subsequently made two major modifications to 

the contract. An integrated baseline review is important to ensure that 

the contract’s cost data are aligned with the current status of the 

program after a major contract modification. According to the Manager 

of Terminal Automation, who oversees STARS, FAA had planned to initiate 

an integrated baseline review of the STARS contract in November 2002 

and expects to begin this effort as soon as funding is available.



To provide regular contract oversight as the DCMA guidance requires, 

FAA and Raytheon meet monthly to, among other things, discuss the cost 

performance reports. However, discussions of these reports do not, in 

our view, constitute regular contract oversight because, without a 

current, valid performance measurement baseline, FAA cannot compare 

what the contractor has done with what the contractor agreed to do in 

the contract. With a current, valid baseline, the reports would 

indicate when cost or schedule thresholds had been exceeded, and FAA 

could then require the contractor to explain the reasons for the 

variances and to identify and take appropriate corrective actions. But 

because the baseline has not been maintained and is not aligned with 

the current status of the program, the reports are not useful for 

evaluating the contractor’s performance or for projecting the 

contract’s remaining costs. The Manager of Terminal Automation agreed 

that the current cost performance reports are not useful for these 

purposes and said that the agency therefore uses the monthly meetings 

with the contractor to discuss other program control and financial 

issues.



FAA’s Cost Estimates Do Not Reflect Levels of Risk:



FAA has limited information for determining the reliability of the 

costs it has estimated to operate and maintain STARS and to upgrade its 

technology. The agency first projected the costs of operating and 

maintaining STARS in March 2002 and said that if these costs were not 

funded, essential STARS maintenance would not be completed. However, 

FAA has just begun to operate STARS and has limited experience for 

projecting future operating and maintenance costs. In addition, FAA did 

not perform a risk assessment, as its Acquisition System Toolset 

guidance specifies, to identify the minimum, most likely, and maximum 

expected costs for the entire program. Although FAA performed such an 

assessment for one facility, it did not extend this effort--again 

because of time pressures, according to FAA officials. Because FAA has 

just begun to operate STARS, it also has limited experience for 

projecting the costs of technology upgrades over the life of the 

program. Additionally, both the operating and the technology upgrade 

cost estimates are uncertain because they extend many years into the 

future.



Despite the uncertainty inherent in estimates--especially long-range 

ones--FAA has expressed its cost estimates for STARS as point values. 

As we reported in 1997,[Footnote 15] point values imply certainty and 

therefore are not suitable for expressing estimates. Instead, ranges or 

numbers with confidence levels would be more appropriate. For instance, 

a cost estimate of $1 million could be presented either as a range of 

$900,000 to $1.1 million or as $1 million with a confidence interval of 

90 percent, indicating that there is a 10 percent chance that the cost 

will exceed the estimate.[Footnote 16] Because FAA did not perform a 

risk assessment for the entire STARS program, it did not develop ranges 

or confidence levels that it could use to express its cost estimates 

for STARS. And because FAA used point values instead, it limited its 

disclosure of the program’s investment risks.



The reliability of FAA’s development and operating cost estimates is 

important not only for managing STARS effectively but also for planning 

appropriately for other terminal modernization efforts and other FAA 

capital investments. Without reliable estimates for comparing STARS’s 

costs and benefits and for anticipating future expenditures, FAA and 

the Congress cannot make informed decisions about how best to modernize 

the nearly 100 facilities that are not currently scheduled to receive 

STARS. Furthermore, because FAA has given high priority to completing 

STARS and has said that it will fund the program even if it has to 

postpone the funding for other programs, FAA’s estimates for STARS will 

influence the agency’s plans for funding other capital investments.



Impact of STARS’s Estimated Costs on FAA’s Budgets Is Expected to 

Decline through Fiscal Year 2007:



According to our analysis of budgetary data for fiscal years 2004 

through 2007 that we obtained from FAA, the estimated costs of STARS 

should have a declining impact on FAA’s budgets during these years 

because the program’s development phase is nearly over and its 

operations will still be limited. For later years, the impact of these 

estimated costs on FAA’s budgets is unknown because it is too soon in 

the budget cycle for FAA to have developed detailed budgets beyond 

fiscal year 2007.



Because FAA has nearly completed the development of STARS and has begun 

to install the equipment, the agency is budgeting less from the 

facilities and equipment account for STARS. Therefore, the proposed 

funding for STARS does not have a significant impact on the funding for 

other efforts to improve the safety, security, and capacity of the 

national airspace system. For fiscal year 2004, the $94.1 million 

planned to develop and deploy STARS represents 3 percent of the total 

funding for facilities and equipment proposed in FAA’s Capital 

Investment Plan. When the $19.9 million planned for technology upgrades 

is included in the projections for fiscal year 2004, the estimated cost 

for STARS is about 4 percent of FAA’s planned total facilities and 

equipment budget (see fig. 3).



Figure 3: Allocation of Facilities and Equipment Funding for Fiscal 

Year 2004 in FAA’s Capital Investment Plan:



[See PDF for image] - graphic text:



[End of figure] - graphic text:



Notes:



GAO analysis of data from FAA.



Beginning with the fiscal year 2003 budget, FAA showed its facilities 

and equipment budget in broad performance (mission) outcome areas. 

Individual programs support these broad performance areas. For example, 

STARS supports several mission areas, such as safety, security, and 

capacity. To illustrate the impact of STARS on the other broad mission 

areas, this figure consolidates the allocation for STARS in one 

percentage and compares this percentage with the allocations to the 

broad mission areas.



According to FAA’s Capital Investment Plan, the proposed funding for 

FAA’s total facilities and equipment budget will increase slightly 

during fiscal years 2005 through 2007, while the proposed funding for 

STARS’s development and deployment will continue to decline (see table 

1). Therefore, the impact of these estimated STARS costs on the 

facilities and equipment budget for safety, security, and capacity 

would be even less during these fiscal years. The estimated costs of 

technology upgrades, if included in the facilities and equipment cost 

estimates for STARS for these 3 fiscal years, would likewise have a 

similarly small impact on the facilities and equipment budget for these 

fiscal years.



Table 1: Proposed Funding for FAA’s Total Facilities and Equipment 

Budget and for STARS’s Development and Deployment:



Dollars in millions.



Total facilities and equipment budget; Dollars in millions: Fiscal year 

2005: $3,129; Dollars in millions: Fiscal year 2006: $3, 202; Dollars 

in millions: Fiscal year 2007: $3, 277.



STARS development and deployment; Dollars in millions: Fiscal year 

2005: 43.5; Dollars in millions: Fiscal year 2006: 12.5; Dollars in 

millions: Fiscal year 2007: 2.0.



STARS technology upgrades; Dollars in millions: Fiscal year 2005: 13.6; 

Dollars in millions: Fiscal year 2006: 12.6; Dollars in millions: 

Fiscal year 2007: 16.5.



[End of table]



Source: FAA.



Note: These data are from the Capital Investment Plan that FAA 

submitted with its fiscal year 2003 budget request and FAA’s March 2002 

acquisition program baseline for STARS.



As FAA begins to operate STARS equipment at more terminal facilities, 

the primary funding source for the program will shift from the 

facilities and equipment budget account to the operations budget 

account. Although FAA has projected that it will increasingly need 

funding from (1) the operations account to cover the costs of operating 

and maintaining STARS and (2) the facilities and equipment account to 

upgrade STARS technology, it has not yet developed detailed estimates 

of the program’s operations and maintenance and technology upgrade 

costs beyond fiscal year 2007. FAA officials noted that FAA, like most 

federal agencies, develops its budget in 5-year plans and has not yet 

begun to develop detailed budgets beyond fiscal year 2007. 

Consequently, FAA does not currently know what impact the estimated 

costs of operating, maintaining, and upgrading STARS will have on the 

agency’s future budgets. Furthermore, as we previously noted, FAA has 

limited operational experience with STARS to use in estimating and 

budgeting for the costs of the program’s operations, maintenance, and 

technology upgrades. Finally, the uncertainty of long-range estimates 

makes it difficult to determine the impact of STARS’s estimated costs 

on FAA’s budgets for outlying fiscal years.



After Deploying STARS at 74 Facilities, FAA May Modify Its Approach for 

the Remaining Facilities:



FAA is committed to deploying STARS at the 74 terminal and support 

facilities included in the STARS program, but for the nearly 100 other 

facilities that remain to be modernized, the agency has at least three 

options: It could deploy Raytheon’s STARS, it could procure Lockheed 

Martin Corporation’s Common Automated Radar Terminal System (Common 

ARTS) technology, or it could combine Raytheon’s STARS display system 

with Lockheed Martin’s Common ARTS processing system. Between 1997 and 

1999, FAA deployed Common ARTS to 131 small to medium-sized facilities 

and to 5 larger facilities. From its experience with both systems, FAA 

knows that each works independently. However, by combining the two 

technologies, FAA could both (1) take advantage of the customized 

software developed to resolve complex computer-human (controller and 

technician) interface issues that accounted for a significant portion 

of STARS’s development costs and (2) continue to use portions of the 

Common ARTS equipment that it recently deployed.



In October 2002, FAA asked Raytheon to consider the feasibility of 

merging the STARS display system with the Common ARTS processing 

system. According to the Manager of Terminal Automation, Raytheon 

finished negotiating a subcontract with Lockheed Martin in January 

2003, and FAA anticipates that the two contractors will now begin 

analyzing the feasibility of a merger of components of the two systems. 

After FAA receives the results of this analysis, which it expects in 

April 2003, it plans to determine the cost and schedule for modernizing 

the remaining terminal facilities.



Conclusions:



FAA lacks accurate, valid, current data on the STARS program’s costs 

and progress. Without such data, FAA is limited in its ability to 

effectively oversee the contractor’s performance and reliably estimate 

future costs. FAA cannot use the contractor’s cost performance reports 

for these purposes until the contract’s performance measurement 

baseline has been revised to incorporate the results of contract 

modifications, and FAA has verified that the revised baseline is 

aligned with the current status of the contract. Furthermore, without 

performing a risk assessment to identify the program’s minimum, most 

likely, and maximum expected costs, FAA cannot reliably determine the 

level of uncertainty inherent in its cost estimates. Finally, by using 

point values, rather than ranges or other appropriate measures, to 

express its cost estimates, FAA is not revealing the extent of their 

uncertainty. Its current estimates, expressed as point values, are 

misleading because they convey undue certainty and limit disclosure of 

the program’s investment risks. As such, the estimates’ usefulness to 

program managers and congressional overseers is limited.



The earned value management guidance that FAA has adopted from DCMA and 

the Acquisition System Toolset that it compiled for itself establish 

clear procurement management policies and procedures that are 

applicable to STARS and to subsequent terminal modernization programs. 

In light of FAA’s incomplete or inconsistent application of this 

guidance to the STARS program thus far and the resulting cost overruns 

and schedule delays, we believe it is essential that the agency revisit 

the guidance, not only when it updates its baseline and performs an 

integrated baseline review this spring, but also throughout the 

remainder of STARS and throughout subsequent terminal modernization 

programs.



Recommendations for Executive Action:



To improve FAA’s management of STARS and of subsequent terminal 

modernization programs and to provide the Congress with more reliable 

information for overseeing these programs, we recommend that the 

Secretary of Transportation direct the FAA Administrator to follow the 

agency’s guidance for managing major acquisition systems by:



* establishing, maintaining, and controlling an accurate, valid, and 

current performance measurement baseline, which would include 

negotiating all authorized, unpriced work within 3 months;



* conducting an integrated baseline review of any major contract 

modifications within 6 months; and:



* preparing a rigorous life-cycle cost estimate, including a risk 

assessment, in accordance with the Acquisition System Toolset’s 

guidance and identifying the level of uncertainty inherent in the 

estimate.



Agency Comments:



We requested comments on a draft of this report from the Secretary of 

Transportation or his designee. On January 23, 2003, FAA officials, 

including the Manager of Terminal Automation, provided us with the 

following oral comments on the draft. FAA agreed with the general tone 

and intent of the draft report as well as with our conclusions and 

recommendations. FAA noted that, in focusing its time and energy on 

meeting the technical performance and schedule requirements of STARS, 

it spent less time and energy on its business management of the 

program. However, the manager noted, the agency is now taking steps to 

reduce the program’s cost risks, such as defining and negotiating with 

the prime contractor all of the contract work planned for fiscal years 

2003 through 2005. FAA also plans to conduct an integrated baseline 

review when it receives its appropriation for fiscal year 2003. 

According to FAA, our recommendations will further strengthen FAA’s 

commitment to improve the business management of the STARS program. FAA 

provided additional clarifying and technical information, which we 

incorporated as appropriate.



Scope and Methodology:



To conduct our work, we reviewed FAA’s 5-year Capital Investment Plan, 

which proposes funding for programs to modernize the national airspace 

system. We also analyzed data from cost performance reports that the 

STARS contractor developed for FAA. We interviewed FAA officials 

responsible for air traffic control modernization planning and 

budgeting. We also reviewed data from the FAA STARS program, 

contracting officials, and the Department of Transportation’s Office of 

the Inspector General. We did not independently verify the cost and 

performance data we received from FAA. We performed our work from 

October 2002 through January 2003 in accordance with generally accepted 

government auditing standards.



As arranged with your office, unless you publicly announce its contents 

earlier, we plan no further distribution of this report until 5 days 

after the date of this letter. At that time, we will send copies to 

interested Members of Congress, the Secretary of Transportation, and 

the FAA Administrator. We will also make copies available to others on 

request. In addition, the report will be available at no charge on the 

GAO Web site at http://www.gao.gov.



Should you or your staff have questions on matters discussed in this 

report, please contact Gerald L. Dillingham at (202) 512-2834 or Keith 

A. Rhodes at (202) 512-6412. We can also be reached by E-mail at 

dillinghamg@gao.gov and rhodesk@gao.gov, respectively. GAO contacts 

and key contributors to this report are listed in appendix I.



Sincerely yours,



Gerald L. Dillingham, Ph.D.

Director, Physical Infrastructure Issues:

Signed by Gerald L. Dillingham:



Keith A. Rhodes

Chief Technologist, Applied Research and Methods:

Signed by Keith A. Rhodes



[End of section]



Appendixes:



Appendix I: GAO Contacts and Staff Acknowledgments:



GAO Contacts:



Belva Martin (202) 512-2834

Madhav Panwar (202) 512-6228:



Staff Acknowledgments:



In addition to those individuals named above, Yvette Banks, Geraldine 

Beard, Jennifer Echard, Elizabeth Eisenstadt, Elizabeth Marchak, and 

Karen Richey made key contributions to this report.:



FOOTNOTES



[1] A previous version of STARS has been in use at smaller facilities 

since 1999. Philadelphia is the 14th-largest terminal facility in terms 

of handling operations under instrument flight rules. FAA’s data show 

that Philadelphia handled 686,000 operations between January and 

December 2000. 



[2] To support STARS operations at terminal facilities, FAA currently 

has four systems dedicated to maintenance. 



[3] The Department of Defense (DOD) is also procuring STARS for 153 of 

its facilities. 



[4] FAA currently plans to deploy STARS to a total of about 170 

terminal and support facilities.



[5] U.S. General Accounting Office, National Airspace System: Status of 

FAA’s Standard Terminal Automation Replacement System, GAO-02-1071 

(Washington, D.C.: Sept. 17, 2002).



[6] The report does not address DOD’s efforts to deploy the equipment.



[7] Throughout this report, we use the term “deploy” to denote efforts 

by FAA to put STARS software, hardware, and other supporting equipment 

into a facility to test it and eventually use it to control traffic. 



[8] FAA noted that the $1.46 billion would be predominantly for labor 

costs that the agency would incur for STARS or a similar automation 

system. 



[9] Defense Contract Management Agency, Earned Value Management 

Implementation Guide (October 1997).



[10] This account funds security activities related mainly to the 

security of FAA facilities and equipment. Funding for some airport 

security comes from another FAA account--Grants-in-Aid for Airports. 



[11] GAO-02-1071.



[12] As previously noted, FAA officials said the $1.46 billion would be 

labor costs that the agency would incur for STARS or a similar 

automation system.



[13] Earned Value Management Guide (October 1997).



[14] The purpose of this review, conducted jointly by the agency and 

the contractor, is to understand and assess the adequacy, accuracy, and 

risks of a performance measurement baseline with respect to the 

contract’s work scope, schedule, technical requirements, and resource 

availability.



[15] U.S. General Accounting Office, Air Traffic Control: Improved Cost 

Information Needed to Make Billion Dollar Modernization Investment 

Decisions, GAO/AIMD-97-20 (Washington, D.C.: Jan. 22, 1997).



[16] The 90 percent confidence level is based on an analysis of the 

estimate’s uncertainty made by using a Monte Carlo model. 



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