F-35s Deployed with Wrong Spare Parts Amid Supply Chain Failures, GAO Finds
Because of modifications to the F-35 Joint Strike Fighter fleet, spare parts that the U.S. Marine Corps took on its recent deployment overseas were not compatible with its fifth-generation fighters, according to a new watchdog report.
The lapse in supply chain management is one of myriad reasons the F-35 stealth jet fleet, operated across three services, is falling short of its performance and operational requirements, according to officials with the Government Accountability Office.
In a report published last week, the GAO found that spare parts shortages contributed to the F-35's overall lower-than-desired mission-capable rate.
"While DoD is taking various actions to improve F-35 spare parts availability so that aircraft can fly and perform their missions, it will likely continue to struggle to meet warfighter requirements – due to how it is planning for and allocating spare parts," the GAO said.
"F-35 aircraft were unable to fly nearly 30 percent [between] the May-November 2018 time period due to spare parts shortages," according to a summary finding in the report. Furthermore, the Pentagon "had a repair backlog of about 4,300 F-35 parts" in that timeframe, it said.
Only 27 percent of all F-35s were fully mission capable (FMC), or able to complete all of their missions in a wartime or training scenario. Roughly 50 percent of the fleet was considered mission capable (MC), or able to perform at least one of their core functions, the report said.
The GAO said the Pentagon's minimum target for full mission capability should hover around 60 percent, while its day-to-day mission-capable rate should be 75 percent.
The news comes as each service is rushing to meet former Defense Secretary Jim Mattis' requirement to raise mission-capable rates for four key tactical aircraft – the F-16 Fighting Falcon, F/A-18 Hornet, F-22 Raptor and the F-35 – to 80 percent by the end of fiscal 2019.
https://www.military.com/daily-news/2019/04/29/f-35s-deployed-wrong-spare-parts-amid-supply-chain-failures-gao-finds.html