SDR 2011F00142

Service difficulty report · Mount · Cessna 310Q

Difficulty date
June 13, 2011
Submitted
June 13, 2011
Operation
General aviation
Aircraft
N790DM
Make and model
Cessna 310Q
Aircraft serial
310Q0828
Engine
Cont IO470VO
Part
Mount
Part number
J123901
Condition
Damaged
Location
Engine
Part time
212 hours
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

LEFT AND RIGHT ENGINE, BOTH FRONT MOUNT UPPER HALVES COMPRESSED EXCESSIVELY. THE LT FRONT MOUNT ON THE LT AND RT ENGINE WERE EXPOSING .2500" OF INNER BARREL. SUBSEQUENTLY, THE LT ENGINE NR 6 CYLINDER HEADER TUBE RUBBED THE ENGINE BEAM EXTENSION. IT HAS NOT BEEN UNCOMMON TO FIND THIS CONDITION ON THE LT FRONT MOUNT AFTER 100 HOURS TIS.

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