Ministry for State Security

July 30, 2014 - 3:00pm

The FAA is proposing to adopt a new airworthiness directive for certain Sikorsky Model S-92A helicopters requiring the installation of a main gearbox (MGB) failed pump sensor and vacuum switch wiring, installing an MGB oil auto bypass system, activating aircraft management system (AMS) 7.1 software to show a new visual warning and installing updated enhanced ground proximity warning system software that includes an aural annunciation of a complete oil pressure loss condition.

July 10, 2013 - 11:45am

The FAA proposes a new airworthiness directive for the Eurocopter EC135P1, EC135P2, EC135P2+, EC135T1, EC135T2 and EC135T2+. It requires analyzing the main gearbox (MGB) oil for indications of metal chips or pieces, reviewing the MGB log or equivalent record, and inspecting certain teeth in the MGB after two chip indications.