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Monday, September 14, 2009
F135 Damaged in Ground Tests
Pratt & Whitney alerted the media mid-day Sunday that an F135 engine had been damaged during qualification ground-testing, and quickly held a press call with a "program expert". Here's essentially what he said.
The CTOL engine was 2,455 cycles into a 2,600-cycle durability test leading to initial service release when "parts were noticed coming out of the jet pipe". The engine was still running and capable of producing thrust when it was shut down.
Inspection revealed tip damage to a "handful" of blades on the first and section fan stages, which are integrally bladed rotors (IBR). Downstream damage was confined to the compressor. There was no visible damage to the combustor and turbine.
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