Service difficulty report · Actuator · Boeing 777222

Difficulty date
November 10, 2012
Submitted
December 31, 2012
Operation
Air carrier
Aircraft
N777UA
Make and model
Boeing 777222
Aircraft serial
26916
Aircraft time
71,280 hours, 12,831 cycles
Engine
Pwa PW4077
Part
Actuator
Condition
Faulty
Location
R1 Door
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 1R NR 1 RIGHT PASSENGER ENTRY DOOR FLIGHT LOCK COMMAND-FLT LK RLY-SENSOR DISAGREEMENT. STATUS MSG01- NOT ACTIVE CLIMB INTERMITTENT; RELAY (DR 1R FLIGHT LOCK) IN P210 HAS A FAULT. DB- PSEU 2 (R2) MSG02- NOT ACTIVE INITIAL CLIMB INTERMITTENT; TARGET FLIGHT LOCK ENGAGED (DOOR 1R) IS OUT OF POSITION. DB- PSEU 2 (R2) MSG03- NOT ACTIVE INITIAL CLIMB INTERMITTENT; TARGET FLIGHT LOCK DISENGAGED (DOOR 1R) IS OUT OF POSITION. DB- PSEU 2 (R2) MSG-5211430 INACTV CL INTER MSG-5212050 INACTV IC INTER MSG-5212040 INACTV IC INTER. REPLACED RELAY K52201 PER WDM 52-11-12 AND REPLACED DOOR 1R FLIGHT LOCK ACTUATOR PER MM. VERIFIED LOCK OPERATION.