Service difficulty report · Actuator · Boeing 777222

Difficulty date
April 11, 2026
Submitted
April 22, 2026
Operation
Air carrier
Aircraft
N796UA
Make and model
Boeing 777222
Aircraft serial
26931
Aircraft time
114,287 hours, 14,946 cycles
Part
Actuator
Part number
90480001
Part serial
797
Condition
Faulted
Location
L3 Door Lock
Part time
731,855 hours, 703,756 cycles
Stage of operation
IN
How discovered
O
Nature of condition
J
Precautionary procedure
K

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

What was found

DOOR FLIGHT LOCK 3L EICAS STATUS #3 LEFT PASSENGER ENTRY DOOR FLIGHT LOCK COMMAND/FLT LK RLY/SENS OR DISAGREEMENT. DB PSEU 2 (R2) DB PSEU 2 (L2) NO TIME TO TS DUE TO SHORT GROUND TIME. REQUESTING MEL TOMC APPROVED DDP COMPLIED WITH *DM* PLACING A DOOR PROX SENSOR 25-5234-3-0105 ON ORDER IN CASE NEEDED DURING T/S-ING FOUND FAULT CODE 52-11320 PERFORMED FIM CODE TASK 805 STEP A THROUGH F.(2)(A) AMM TASK 52-11-26-740-801 DOOR 3L FAILED TEST CONTINUE ON AT STEP F.(3) DOOR 3L REMOVED AND REPLACED DOOR L3 ACTUATOR DOOR LOCK PER AMM 52-11-26. OP CHECK GOOD.