Service difficulty report · Relay · Beech 1900D

Difficulty date
July 9, 2014
Submitted
July 23, 2014
Operation
Air carrier
Aircraft
N104EV
Make and model
Beech 1900D
Aircraft serial
UE166
Aircraft time
28,175 hours, 41,327 cycles
Part
Relay
Part number
MS24171D1
Condition
Stuck
Location
Power Pack
Stage of operation
AP
How discovered
O
Nature of condition
O
Precautionary procedure
D

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

What was found

CREW PUT THE LG UP WITH NO ISSUES. WHEN THEY PUT THE GEAR HANDLE DOWN, THE GEAR DID NOT GO DOWN. THEY NOTICED THAT THE LG CONTROL CB WAS POPPED & ATTEMPTED TO PUSH IT IN. WHEN THEY DID THIS THE GEAR UNLOCKED & STARTED TO DROP & THE GEAR CONTROL BREAKER POPPED AGAIN. THEY THEN RETURNED & PROCEEDED TO PUMP THE GEAR DOWN & LOCKED. AFTER TROUBLESHOOTING, FOUND THE LG POWER PACK MOTOR RELAY K3 TO BE STUCK SHUT CAUSING THE MOTOR TO RUN CONTINUOUSLY & HEAT UP CAUSING THE BREAKER TO POP. THE K3 RELAY WAS REPLACED & OPERATIONS CHECKS WERE GOOD.

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