Service difficulty report · Lock Actuator · Boeing 737291

Difficulty date
November 26, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N979UA
Make and model
Boeing 737291
Aircraft serial
21544
Engine
Pwa JT8D9A
Part
Lock Actuator
Part number
6544625
Condition
Failed
Location
Nlg
Stage of operation
CL
Nature of condition
J
Precautionary procedure
O

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

What was found

WHEN GEAR HANDLE PUT IN THE UP POSITION, GOT NOSE LANDING GEAR UNSAFE LIGHT. NOSE LANDING GEAR DID NOT RETRACT, CYCLED HANDLE AND NO HELP. NOSE GEAR WAS STUCK DOWN AND LOCKED. *S/D* LOWER END OF THE NLG LOCK ACTUATOR FRACTURED. REPLACED ACTUATOR AND ACCOMPLISHED NLG RETRACTION TEST, OPS CHECK GOOD.