What was found
DOOR UPPER DECK FLIGHT LOCK MESSAGE. PERFORMED ADJUSTMENT TEST OF UPPER DECK DOOR LOCK IAW AMM 52-23-00. NO DEFECTS NOTED. MESSAGE CLEARED.
- Difficulty date
- August 11, 2025
- Submitted
- August 15, 2025
- Operation
- Air carrier
- Aircraft
- N742CK
- Make and model
- Boeing 747446
- Aircraft serial
- 24424
- Aircraft time
- 2,525 hours, 1,090 cycles
- System (JASC)
- 5270 · Door Warning System
- Part
- Warning Message
- Condition
- False Activation
- 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.