Service difficulty report · Lock · Boeing 747446

Difficulty date
October 12, 2025
Submitted
October 14, 2025
Operation
Air carrier
Aircraft
N745CK
Make and model
Boeing 747446
Aircraft serial
26361
Aircraft time
101,175 hours, 14,999 cycles
Part
Lock
Condition
Inoperative
Location
Zone 800
Stage of operation
CL
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 UPPER DECK FLIGHT LOCK. TROUBLESHOT PER FIM 52-71 TASK 823. PERFORMED OPERATIONS TEST IAW AMM 52-23-00. ALL CHECKS GOOD AT THIS TIME.