SDR 99ZZZX2346

Service difficulty report · Cylinder · Cessna 177B

Difficulty date
June 11, 1999
Submitted
March 26, 2000
Operation
General aviation
Aircraft
N67MM
Make and model
Cessna 177B
Aircraft serial
17702269
Engine
Lyc O360A1F6
Part
Cylinder
Condition
Cracked
Location
Nr 2
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

NR 2 CYLINDER DEVELOPED AN OIL LEAK DIAGNOSED AS A CRACK THROUGH THE CYLINDER CASTING IN THE AREA OF THE INTAKE VALVE SEAT. UPON REMOVING THE CYLINDER FOR EXCHANGE UNDER WARRANTY, THE EXHAUST AND INTAKE ROCKER ARMS WERE DISCOVERED SWAPPED AS DELIVERED FROM THE FACTORY. THE OTHER 3 CYLINDERS WERE CHECKED, AND THE ROCKER ARMS WERE IN THE CORRECT PLACES ON THOSE CYINDERS.

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