SDR 96ZZZX950

Service difficulty report · Adapter Kit · Cessna 421C

Difficulty date
December 27, 1995
Submitted
March 26, 2000
Operation
General aviation
Aircraft
N369NM
Make and model
Cessna 421C
Aircraft serial
421C1032
Engine
Cont GTSIO520N
Part
Adapter Kit
Part number
EQ6642
Condition
Excess Wear
Location
Starter
Part time
40 hours
Stage of operation
IN
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

ON 12-27-95, A 50-HOUR INSPECTION WAS PERFORMED. METAL CONTAMINATION NOTED IN RT ENG OIL FILTER. FURTHER INVESTIGATION REVEALED TORSIONAL DAMPER AND STARTER SHAFT GEAR ASSY WERE LOOSE IN THE STARTER ADAPTER HOUSING. ADAPTER ASSY REMOVED AND FND NEEDLE BEARING MOUNTED IN REAR CENTER OF RT CRANKCASE HAD COMPLETELY COME APART. STARTER ADAPTER SHAFT GEAR WAS THEN ALLOWED TO ELONGATE THE HOLE. BEARING IS MOUNTED IN AND RENDER THE CRANKCASE UNSERVICEABLE AT THIS TIME. CSB94-4A C/W ON 11-15-95 BY INSTALLATION OF A REBUILT EQ6642 STARTER ADAPTER KIT. A NEW BEARING, PN 537721, INSTALLED AT THE SAME TIME BECAUSE FRONT FACE OF OLD BEARING CAGE WAS WORN PAPER THIN.

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