Service difficulty report · Bolt · Cessna 421C

Difficulty date
November 19, 2001
Submitted
December 5, 2001
Operation
Air carrier
Aircraft
N748CA
Make and model
Cessna 421C
Aircraft serial
421C0905
Engine
Cont GTSIO520C
Part
Bolt
Condition
Sheared
Location
Alternator
Component
Alternator
Component part number
ALV9510
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

ALTERNATOR CASE THIN BOLTS ARE SHEARING. BOLTS THAT RECOVERED FROM ENGINE COWLING, SHOWS SIGNS OF STRETCHING. BOLTS POSSIBLE OVER TORQUED FROM FACTORY.

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