Overheating APU caused nearly US$3m of damage to USAF F-22

A new US Air Force Aircraft Accident Investigation Board Report has revealed that an overheating auxiliary power unit (APU) caused nearly US$3m of damage to an F-22A Raptor in a previously unreported incident at Nellis Air Force Base (AFB), Nevada, on October 30, 2020.

The report, published by Air Combat Command on July 9, outlined that the aircraft involved was F-22A tail number 06-4109 ‘WA’ from the 53rd Wing’s 422nd Test and Evaluation Squadron ‘Green Bats’ headquartered at Eglin AFB, Florida. On October 30, 2020, at approximately 0930hrs local time, the mishap aircraft (MA) experienced an overheat condition in the auxiliary power unit (APU) exhaust bay. The MA was maintained by the 57th Wing's 757th Aircraft Maintenance Squadron at Nellis AFB. The estimated cost to replace damaged parts and repair the MA is US$2,690,000.

On Jun

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