Service difficulty report · Relay · Beech B200

Difficulty date
November 28, 2019
Submitted
December 2, 2019
Operation
Air carrier
Aircraft
N546LM
Make and model
Beech B200
Aircraft serial
BB1235
Aircraft time
11,716 hours, 11,400 cycles
Part
Relay
Part number
SM50D7
Condition
Failed
Location
Flap Control
Part time
11,716 hours, 11,400 cycles
Stage of operation
TX
How discovered
O
Nature of condition
B
Precautionary procedure
O

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

What was found

UPON TURNING OFF THE FINAL TAXI WAY TO THE HANGAR IN ANC, CREW NOTED A STRONG ELECTRICAL SMOKE SMELL FOLLOWED BY SMOKE IN THE CABIN. UPON INSPECTION BY MAINTENANCE, NOTED THAT THE FLAP CONTROL BREAKER WAS POPPED. MAINT PUSHED THE BREAKER IN AND OPERATED THE FLAPS. AT THAT POINT, WE GOT A STRONG ELECTRICAL SMELL AND THE BREAKER POPPED AGAIN. TRACED THE ISSUE DOWN TO THE FLAP CONTROL RELAY. REMOVED AND REPLACED THE FLAP CONTROL RELAY WITH NEW AND OPERATIONAL CHECK IS GOOD. OPERATED NUMEROUS TIMES WITHOUT FAULT. AIRCRAFT WAS RETURNED TO SERVICE. PART NUMBER ON AND OFF SM50D7. JEREMIAH THIBODEAUX AP33722765

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