Service difficulty report · Switch · Boeing 777222

Difficulty date
January 28, 2025
Submitted
January 31, 2025
Operation
Air carrier
Aircraft
N209UA
Make and model
Boeing 777222
Aircraft serial
30215
Aircraft time
98,137 hours, 11,813 cycles
Part
Switch
Condition
Out Of Adjust
Location
Zone 800
Stage of operation
CL
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 4R EICAS STATUS #4 RIGHT PASSENGER ENTRY DOOR FLIGHT LOCK COMMAND/FLT LK RLY/SEN SOR DISAGREEMENT. FIM TASK REF : FIM TASK REFERENCE NOT FOUND CMC MSG# 5211350 FLIGHT STATUS: I INTERMITTENCE CODE: I PH: CLIMB NARRATIVE: PSEU 2 (R2) CMC MSG# 5212290 FLIGHT STATUS: I INTERMITTENCE CODE: I PH: INITIAL CLIMB NARRATIVE: PSEU 2 (R2) FOUND A MIGRATED ROLL PIN IN THE FLIGHT LOCK PROXIMITY SENSOR MECHANISM CAUSING CONTACT WITH THE SENSOR SWITCH. ADJUST ROLL PIN POSITION TO CORRECT POSITION, CLOSED DOOR AND PRESSURIZED A/C TO 3.0 DIFFERENTIAL PRESSURE WITH NO EICAS MESSAGES. REF FIM 51-11 TASK 806.