Service difficulty report · Actuator · Boeing 777222

Difficulty date
September 26, 2025
Submitted
September 29, 2025
Operation
Air carrier
Aircraft
N778UA
Make and model
Boeing 777222
Aircraft serial
26940
Aircraft time
106,067 hours, 19,268 cycles
Part
Actuator
Part number
933D1001
Part serial
1026
Condition
Faulted
Location
Zone 800
Part time
806,043 hours, 719,263 cycles
Stage of operation
NR
How discovered
O
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

DOOR FLIGHT LOCK 2R EICAS STATUS #2 RIGHT PASSENGER ENTRY DOOR FLIGHT LOCK COMMAND/FLT LK RLY/SEN SOR DISAGREEMENT.DB PSEU 2 (R2) DB PSEU 2 (L2) SAME 3 FAULTS AS PREVIOUS LEG, REF FIM 52-11 TASK 806. PERFORMED FLIGHT LOCK CONTROL TEST PER AMM 52-11-26-740-801 FOUND 2R FLIGHT LOCK INOP R&R DOOR R2 FLIGHT LOCK ACTUATOR. OPS CHECKS GOOD. NO FURTHER DEFECTS NOTED. REF AMM TASK 52-11-26-400-801 & TASK 52-11-26-740-801.