After F135 test engine automatically shut down, Pratt & Whitney checks the said engine during ground testing for the short take-off and vertical landing variant of the Lockheed Martin F-35 Joint Strike Fighter.

The incident occurred on 30 August on a test stand at Pratt & Whitney’s West Palm Beach, Florida facility, where the company is working towards initial flight release of the STOVL F135 to support the planned May 2008 first flight of the F-35B.

P&W says the F135 was “completing a control model validation qualification test in powered-lift mode… when it automatically powered down based on a stall indication”.

Read the full article: http://www.flightglobal.com/articles/2007/09/11/216723/pratt.html