Service difficulty report · Warning Message · Boeing 777224

Difficulty date
July 25, 2025
Submitted
July 29, 2025
Operation
Air carrier
Aircraft
N78008
Make and model
Boeing 777224
Aircraft serial
29478
Aircraft time
121,201 hours, 12,544 cycles
Part
Warning Message
Condition
False Activation
Location
Flt Lock
Stage of operation
TX
How discovered
O
Nature of condition
N
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 3R EICAS STATUS #3 RIGHT PASSENGER ENTRY DOOR FLIGHT LOCK COMMAND /FLT LK RLY/SEN SOR DISAGREEMENT. FIM TASK REF : FIM TASK REFERENCE NOT FOUND CMC MSG# 5211330. PSEU 2 (R2) WHEN ACFT ARRIVAL AMT ON BOARD CHK NO EXISTING FAULT, ONLY GOT PRESENT LEG FAULT MMSG 52-11330 & 52-12210, BOTH MMSG ARE NOT ACTIVE. PER FIM 52-11 TASK 806 AND 52-11 TASK 809, THIS WAS AN INTERMITTENT FAULT. PERFORM FLIGHT LOCK CONTROL TEST PER AMM 52-11-26-200-801, TEST PASSED, STATUS MSG GONE.