Military.com
DoD Buzz

JSF Grounded For Generator Failure, Leak

The entire F-35 fleet has been grounded pending an investigation into what caused a dual generator failure and an oil leak during flight tests of AF-4 at Edwards Air Force Base.

"The jet returned safely to base. As a routine safety precaution, the Joint Program Office (JPO) has temporarily suspended F-35 flight operations until a team of JPO and LM technical experts determines the root cause of the generator failure and oil leak," Lockheed Martin F-35 spokesman John Kent said in a press statement.

The aircraft in question arrived at Edwards in late January and was the fifth F-35A conventional takeoff and landing aircraft to ferry there for testing.

The grounding appears to have occurred because of the potential for loss of control posed by such a combination. The F-35's flight control surfaces are controlled by electro-hydrostatic actuators made by Moog. If they don't have power then the pilot can lose control. In this case, the back-up power system -- the Integrated Power Package which also serves as the starter and air conditioner -- kicked in as designed, allowing the pilot to return to base.

Kent noted that the F-35 has now flown 657 flights and this appears to be the first time a flight has encountered this problem. "Once the cause is known, the appropriate repairs and improvements will be made before flight operations resume," he said.

Show Full Article

Related Topics

DoDBuzz

Most Popular Military News