Support Aircraft:
Analysis of Air Force Decision To Replace CT-39 Aircraft
NSIAD-86-92BR: Published: Apr 1, 1986. Publicly Released: Apr 1, 1986.
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Pursuant to a congressional request, GAO reviewed the Air Force's decision to retire the CT-30 aircraft fleet and replace it with a mix of C-12F and C-21A leased aircraft.
GAO found that: (1) the Air Force used lease-versus-buy comparisons in its economic analysis of the options to replace the CT-39 aircraft and found that it was more economical to lease new aircraft than to continue operations of the existing CT-39 fleet or purchase replacement aircraft; (2) the Air Force's economic analysis was generally accurate, complete, and realistic; (3) although the full cost to extend the service life of the CT-39 fleet was not determined, the cost would have provided an additional economic justification for retirement of the CT-39; (4) although the Air Force's method of calculating leasing option costs reduced the estimated cost of leasing new aircraft over a 22-year period, the reduction did not affect the results which supported the decision to replace the CT-39; (5) there were significant differences in the operational capabilities of the CT-39 aircraft and the C-21F and C-21A aircraft; and (6) the Air Force would have to implement an extensive inspection and repair program and a series of safety and structural modifications to extend the service life of most of the CT-39 air fleet.
Jun 28, 2018
U.S. Postal Service:
Projected Capital Spending and Processes for Addressing Uncertainties and RisksGAO-18-515: Published: Jun 28, 2018. Publicly Released: Jun 28, 2018.
Jun 21, 2018
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The Nation's Fiscal Health:
Action Is Needed to Address the Federal Government's Fiscal FutureGAO-18-299SP: Published: Jun 21, 2018. Publicly Released: Jun 21, 2018.
Apr 3, 2018
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Defense Budget:
Actions Needed to Improve the Management of Foreign Currency FundsGAO-18-221: Published: Apr 3, 2018. Publicly Released: Apr 3, 2018.
Feb 6, 2018
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Budget Issues:
Continuing Resolutions and Other Budget Uncertainties Present Management ChallengesGAO-18-368T: Published: Feb 6, 2018. Publicly Released: Feb 6, 2018.
Oct 12, 2017
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Public Relations Spending:
Selected Agencies' Activities Supported by Contracts and Public Affairs StaffGAO-17-711: Published: Sep 12, 2017. Publicly Released: Oct 12, 2017.
Oct 2, 2017
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U.S. Territories:
Public Debt OutlookGAO-18-160: Published: Oct 2, 2017. Publicly Released: Oct 2, 2017.
Sep 20, 2017
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Budget Issues:
Budget Uncertainty and Disruptions Affect Timing of Agency SpendingGAO-17-807T: Published: Sep 20, 2017. Publicly Released: Sep 20, 2017.
May 3, 2017
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The Nation's Fiscal Health:
Action is Needed to Address the Federal Government's Fiscal FutureGAO-17-579T: Published: May 3, 2017. Publicly Released: May 3, 2017.
Jan 18, 2017
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Overseas Contingency Operations:
OMB and DOD Should Revise the Criteria for Determining Eligible Costs and Identify the Costs Likely to Endure Long TermGAO-17-68: Published: Jan 18, 2017. Publicly Released: Jan 18, 2017.
Jan 17, 2017
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The Nation's Fiscal Health:
Action is Needed to Address the Federal Government's Fiscal FutureGAO-17-237SP: Published: Jan 17, 2017. Publicly Released: Jan 17, 2017.
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