Service difficulty report · Solenoid · Cessna 172E

Difficulty date
March 3, 2010
Submitted
March 3, 2010
Operation
General aviation
Aircraft
N7884N
Make and model
Cessna 172E
Aircraft serial
R1720275
Aircraft time
14,070 hours
Engine
Cont IO360*
Part
Solenoid
Part number
878110S1660A1
Part serial
0309
Condition
Sticks
Location
Starter
Part time
917 hours
Stage of operation
TX
How discovered
9
Nature of condition
M, B
Precautionary procedure
O

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

What was found

BURNED ODOR OF ELECTRICAL COMPONENTS AFTER ENGINE START UP. SELECTED ACFT MASTER SWITCH OFF AND SHUTDOWN ENGINE. INSP REVEALED STARTER MOTOR HAD OVERHEATED. FURTHER EXAMINATION REVEALED STARTER SOLENOID HAD STUCK IN THE CLOSED POSITION DURING ENGINE START ALLOWING STARTER MOTOR TO RUN CONTINUOUSLY EXCEEDING STARTER DUTY CYCLE LIMITS.

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