Service difficulty report · Bypass Valve · Cessna 152

Difficulty date
June 20, 2016
Submitted
June 20, 2016
Operation
General aviation
Aircraft
N68713
Make and model
Cessna 152
Aircraft serial
15285331
Aircraft time
11,811 hours
Engine
Lyc O235L2C
Engine time
472 hours
Propeller
Mcauly 1A103TCM
Part
Bypass Valve
Part number
53E22144
Part serial
198765
Condition
Defective
Location
Engine
Part time
472 hours
Stage of operation
CL
How discovered
O
Nature of condition
R, J
Precautionary procedure
B, A

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

What was found

OIL THERMAL BYPASS VALVE WAS FOUND TO NOT MAINTAIN SPECIFIC OPERATING TEMPERATURES, VALVE WAS REPLACED WITH A SERVICEABLE UNIT WITH NO FURTHER ISSUES NOTED.

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