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Ata chapter for fueselage corrosion install#
This Service Bulletin gives the data and instructions necessary to install a cover assy (between the compressor clutch plate and the oil hose) to protect the oil hose. The shield can be mounted on the compressor support bracket with the current bolts. This will provide a barrier between the compressor clutch plate and the oil hose. Description Install a cover assy which will be mounted on the attachment points of the compressor.
If a spring on the compressor clutch plate shears, the oil hose can become damaged and the engine oil can spill into the engine bay. Reason (1) Problem On PC-7 aircraft that are pre Service Bulletin, the oil cooler inlet-hose is routed close to the air conditioning compressor clutch plate. Effectivity MSN 101 thru 607, Pre Service Bulletin B. STANS, SWITZERLAND Service Bulletin No: Ref No: 165 Modification No: EC ATA Chapter: 21 AIR CONDITIONING - COOLING INSTALL A COVER ASSEMBLY TO THE COMPRESSOR TO PROTECT TO THE ENGINE OIL HOSE 1.