Aviation safety issues and actions
Safety Advisory Notice issued to: Operators of CFM56-7 and CFM56-5 engines
|Date issued:||27 July 2010|
|Safety action status:||Closed|
|Background:||Why this Safety Advisory Notice was developed|
The Australian Transport Safety Bureau draws the attention of all operators of CFM56-7 and CFM56-5 engines and their variants to the safety issues identified by this investigation. In particular operators should be aware of the potential for premature wear within the compressor variable stator vane bushings and shroud to develop to levels where it may precipitate the failure of the engine while in-service, and within a timeframe that is less than the minimum threshold for the initial inspection for the problem (24,000 hours TSN, per S/B 72-0515). Operators are encouraged to review their procedures to ensure an appropriate awareness of the issues among maintenance personnel.