Damage limits and repair in cold section inspection , Other Engineering

Damage Limits and Repair

Minor damage to compressor and fan blades may be repaired provided the damage is within the allowable limits established by the manufacturer in the AMM. Typical limits for fan blades are shown in Figure. All repairs must be well blended so that the finished surfaces are smooth.

The majority of cold section inspections will require the use of a strong light source and sometimes a small mirror. If however doubt exists as regard the extent of damage, then a boroscope inspection would be instigated. Always observe the safety precautions associated with working in the intake. Ensure that the flightdeck is suitably placarded informing other personnel that you are in the intake. Tripping of C/Bs may be required by the manufacturer in order to isolate the starting and ignition circuits. A safety man may be required who's job it will be to look after your interest.


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Posted Date: 9/12/2012 8:55:23 AM | Location : United States

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