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13 février 2013 3 13 /02 /février /2013 20:20

F-35B test aircraft BF-3 source asdnews


Feb. 13, 2013 by Dave Majumdar – FG


Washington DC - The Lockheed Martin F-35B short take-off vertical landing (STOVL) variant of the Joint Strike Fighter has returned to flight after a 25-day grounding.


"F-35B flight clearance was restored February 12, rescinding a cautionary suspension issued January 18 after a fueldraulic hose failure," the F-35 Joint Program Office (JPO) says. "Government and industry engineering teams conducted a root cause investigation and determined the hose was improperly crimped."


The fueldraulic hose powers the actuator movement for the F-35B's STOVL thrust vectoring exhaust system.


Hoses on all 25 F-35B aircraft currently in the US Marine Corps and UK inventory have been inspected. Those aircraft found to have defective parts will have those improperly crimped hoses replaced, the JPO says. The JPO had said earlier that the investigating team found a total of seven aircraft had the manufacturing defect.


The F-35B fleet which located at NAS Patuxent River, Maryland, Eglin AFB, Florida, and MCAS Yuma, Arizona has been cleared to fly once the re-installation of "compliant" hoses is complete, the JPO says.


Flight operations for the conventional take-off F-35A and F-35C carrier variant aircraft were unaffected by the grounding.

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