S-92 Crash Prompts Assessment of ‘Extremely Remote’ Requirement

Aviation International News » March 2012
March 4, 2012, 1:40 AM

The FAA is moving to redefine what “extremely remote” means when it comes to Part 29 certification provisions regarding loss of helicopter gearbox lubrication. The S-92 originally gained certification after Sikorsky convinced the FAA that complete loss of lubrication was extremely remote. Failure of the main rotor gearbox lubrication system is blamed for the fatal ditching of a Cougar Helicopters S-92A off Newfoundland in March 2009.

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