Service difficulty report · Actuator · Boeing 737823

Difficulty date
May 27, 2024
Submitted
May 30, 2024
Operation
Air carrier
Aircraft
N839NN
Make and model
Boeing 737823
Aircraft serial
29557
Aircraft time
40,913 hours, 17,355 cycles
Part
Actuator
Part number
W92C
Part serial
D5500
Condition
Faulty
Location
Nlg Steering
Part time
511,043 hours, 505,174 cycles
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: NOSE GEAR STEER CIRCUIT BREAKER POPPED AFTER TAKE OFF, HEARD A LOUD POP; AIRCRAFT LANDED SAFELY AT SFO. **SUPPLEMENTAL REPORT FOR (AALA202405296404): REMOVE AND REPLACED M1177 NOSE STEERING ROTARY ACTUATOR ((AALA202405296404)), PER BMM 32-51-81. REMOVE AND REPLACED NOSE STEERING RELAY R596 ((AALA202405304735)), PER SSM 32-51-11. ALL OPERTIONAL TEST PASSED**(CLOSED).