Service difficulty report · Relay · Boeing 737522

Difficulty date
October 16, 2005
Submitted
December 2, 2005
Operation
General aviation
Make and model
Boeing 737522
Engine
Cfmint CFM563C1
Part
Relay
Part number
R123
Condition
Failed
Location
Te Flaps
Stage of operation
AP
How discovered
O
Nature of condition
F
Precautionary procedure
O

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

What was found

DURING APPROACH, AIRCRAFT ENCOUNTERED FLAP ASYMMETRY. THE AIRCRAFT LANDED UNEVENTFULLY. MAINTENANCE CARRIED OUT TROUBLESHOOTING AND SUSPECTED THE FLAP ASYMMETRY SHUT OFF RELAY TO BE AT FAULT. THE RELAY WAS REPLACED AND THE FLAPS CYCLED NUMEROUS TIMES WITHOUT FAULT. THE AIRCRAFT WAS RETURNED TO SERVICE.