EASA 2018-0260

Affected parts include main gearbox (MGB) suspension bar right-hand-side rear attachment fitting (P/N 330A22-2702-07) and screws (P/N 330A22-0135-20); MGB suspension bar left-hand-side rear attachment fitting (P/N 330A22-2702-06) and screws (P/N 330A22-0135-20); and MGB suspension bar front attachment fitting screws. Requires determination of the accumulated service life and introduces life limits to replace the affected parts with serviceable parts. Prompted by review of helicopter in-service data that revealed tightening torque loss of the attachment screws of the upper deck fittings of the three MGB suspension bars.



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