SDR 98ZZZX4507

Service difficulty report · Case · Cessna 421B

Difficulty date
November 10, 1998
Submitted
March 26, 2000
Operation
General aviation
Aircraft
N421UP
Make and model
Cessna 421B
Aircraft serial
421B0142
Engine
Cont GTSIO520H
Part
Case
Part number
642133
Condition
Cracked
Location
Engine
Part time
2,327 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

CASE CRACKED BELOW NR 3 CYLINDER TOP STUD SECOND FROM THE FRONT. FOUND DURING CYLINDER REMOVAL TO REPLACE BASE SEAL. CRACK ABOUT .50 INCH LONG.

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