Depot Maintenance: Air Force Is Assessing Engine Maintenance Options for Work Currently Performed at Kelly Aviation Center Page: 1 of 19
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SGAO
Accountability * Integrity * Reliability
United States Government Accountability Office
Washington, DC 20548
February 11, 2011
The Honorable Kay Bailey Hutchison
United States Senate
Subject: Depot Maintenance: Air Force Is Assessing Engine Maintenance Options
for Work Currently Performed at Kelly Aviation Center
Dear Senator Hutchison:
This report responds to questions that you raised about Air Force engine maintenance
and repair work currently performed at Kelly Aviation Center (KAC) and the potential
transfer of that work to another location. In 1999, Oklahoma City Air Logistics Center
(OC-ALC) awarded a contract to KAC to perform work, including depot-level
maintenance, repair, and overhaul on TF39 engines, which are typically used for C-5
Galaxy aircraft; T56 engines, which are typically used for C-130 aircraft; and fuel
accessories on these engines. The Air Force estimates the total expenditure under the
contract for this work to be $3.7 billion from February 16, 1999, through December 1,
2010. The contract is not to exceed 15 years (the contract had an initial 7-year ordering
period that could be extended to 15 years or reduced to 5 years based on performance),
and will expire not later than February 15, 2014. The Air Force will need to determine
how to conduct the engine maintenance work after the term of the contract ends.
You requested that we review the potential transfer of the engine maintenance and repair
workload from KAC. Our objectives were to determine (1) the extent to which the Air
Force has identified the costs and benefits of possibly moving engine maintenance for
selected aircraft from KAC and (2) the steps the Air Force has taken and plans to take to
mitigate any potential aircraft readiness risks that might occur if the work is moved.
To conduct this work, we reviewed related laws, policies, and other guidance for
selecting maintenance depot sources of repair, conducting cost-benefit analyses, and
mitigating risk. We also reviewed documents (including the current KAC contract,
workload-related information, and other memorandums) and identified the factors
(including depot workload, maintenance facility capacity, costs, and benefits) to be
considered and the processes to be used in determining best value to the government in
selecting the depot-level source of repair. We compared depot-level source-of-repair and
cost-benefit analysis criteria to the Air Force's procedures and plans for determining the
source of repair. In addition, we reviewed the documents and information on four
examples where the Air Force has experience mitigating risk when depot-level
maintenance work has been transferred from or performed at a single site. We compared
risk mitigation analysis criteria to the Air Force's efforts to assess risk associated withGAO-11-274R Defense Maintenance
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United States. Government Accountability Office. Depot Maintenance: Air Force Is Assessing Engine Maintenance Options for Work Currently Performed at Kelly Aviation Center, text, February 11, 2011; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc301611/m1/1/: accessed April 23, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.