Sikorsky Certifies S-92 Helicopter Main Gearbox Life Extension | Aviation International News

Sikorsky Certifies S-92 Main Gearbox Life Extension

LifePlus methodology enables extended life for certain components

Sikorsky S-92 helicopter — © Sikorsky

By Matt Thurber • Editor-in-Chief

September 19, 2024

Using fleetwide health and usage monitoring system data, Sikorsky has obtained FAA approval for a one-time life extension for specific S-92 main gearbox housings. The approval will help ease supply-chain constraints by allowing longer life for some gearboxes.

Fleet data was collected from more than 300 S-92s logging more than 2.3 million flight hours, allowing Sikorsky to develop a methodology “to more accurately determine the life limit for parts,” according to the company.

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