Service difficulty report · Pcb · Beech 58

Difficulty date
November 2, 2021
Submitted
November 22, 2021
Operation
Air carrier
Aircraft
N36TA
Make and model
Beech 58
Aircraft serial
TH2056
Aircraft time
7,165 hours, 7,622 cycles
Part
Pcb
Part number
1023640591
Condition
Shorted
Location
Flap System
Part time
7,165 hours
Stage of operation
AP
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

PILOT EXPERIENCED A FLAP FAILURE ON APPROACH FOR LANDING. THE FLAPS WOULD NOT EXTEND PAST 0 DEGREES AND THE FLAP MOTOR CIRCUIT BREAKER WAS TRIPPED. THE PILOT LANDED WITHOUT FURTHER INCIDENT. TROUBLESHOOTING DISCLOSED THAT THE MOTOR HAD A BURNED ELECTRICAL SMELL. ADDITIONALLY, THE FLAP PCB BOARD WAS SHORTED. THE FLAP DRIVE MOTOR AND PCB BOARD WAS REPLACED. SUBSEQUENT OPERATIONAL CHECKS WERE SATISFACTORY.

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