SDR 97ZZZX1823

Service difficulty report · Crankcase · Cessna 402C

Difficulty date
February 11, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N2FOR
Make and model
Cessna 402C
Engine
Cont TSIO520VB
Part
Crankcase
Condition
Cracked
Location
Alternator Mt
Stage of operation
IN
Nature of condition
K
Precautionary procedure
K

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

What was found

OIL LEAK. FOUND RIGHT CRANKCASE CRACKED IN THE MIDDLE OF THE REAR MOUNTING FLANGE OF THE ALTERNATOR. CRACK EXTENDED TOWARDS THE NR 4 MAIN BEARING 45MM (1.75 INCH). LOOKING FROM THE OUTSIDE, THE CRACK ALSO EXTENDS TOWARDS THE BACK 25MM (1 INCH) DIRECTLY UNDER THE 7TH STUD BOSS. TMC REMAN: 2771.0.

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