Service difficulty report · Lock · Boeing 767322

Difficulty date
April 14, 2021
Submitted
April 16, 2021
Operation
Air carrier
Aircraft
N674UA
Make and model
Boeing 767322
Aircraft serial
29242
Aircraft time
71,247 hours, 14,837 cycles
Part
Lock
Condition
Inoperative
Location
Flight Deck Door
Stage of operation
CR
How discovered
O
Nature of condition
B
Precautionary procedure
O

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

What was found

COCKPIT DOOR ENTRY LOCK SYSTEM INOP CB T4 OUT FLIGHT DECK DOOR LOCK LATCH HAS BURNING ODUR. ATTEMPTED TO RESET C/B BUT C/B TRIPS AFTER 2 SECONDS. BACK OF C/B INSPECTED FOR SIGNS OF OVERHEATING NONE FOUND. FLIGHT DECK DOOR ACCESS SYSTEM MEASURE.DOOR DEADBOLT VERIFIED TO OPERATE NORMALLY, PLACARD LOCK AND CONTROL PULLED AND COLLARED AS PRECAUTIONARY DEACTIVATED AND MEL 5251C C/B''S T4 AND T5 ON P11 FOR FLIGHT DECK APPLIED. APPROVED MEL 5251C DEFERRED AS PER MEL. SMOKE/ODUR QUESTIONAIRE COMPLETED AND FORWARDED TO TOMC AND TECH RECORDS. ESFR RAISED.