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SDR CA970407004

Open the Markdown

Service difficulty report · Camshaft

FAA SDR system

Difficulty date
March 26, 1997
Submitted
March 26, 2000
Operation
General aviation
Engine
Lyc O320E2D
System (JASC)
8520 · Reciprocating Engine Power Section
Part
Camshaft
Part number
76097
Condition
Spalled
Location
Lobes
Part time
1,754 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

(CAN) INSPECTION FOUND CAMSHAFT LOBES SPALLED AND TAPPET BODIES WERE PITTED. THE SPALLING ON THE LOBES WAS A RESULT OF CORROSION ON THE LOBES AND ON THE TAPPET BODIES. THE CORROSION WAS A RESULT OF LONG PERIODS OF ENGINE INACTIVITY AND NO EVIDENCE OF INHIBITING BEING CARRIED OUT. THIS ENGINE HAS BEEN IN SERVICE SINCE 1968 AND HAS ACCUMULATED 1745 HOURS.