What was found
DOOR UPPER DECK FLIGHT LOCK SWITCH ENGINE INDICATING AND CREW ALERTING SYSTEM ON CLIMBOUT. CLEANED LEFT HAND UPPER DECK DOOR SWITCH IAW B747-400 AMM 20-30-80 OPERATIONAL CHECK OF LEFT HAND UPPER DECK DOOR GOOD.
- Difficulty date
- February 7, 2024
- Submitted
- February 7, 2024
- Operation
- Air carrier
- Aircraft
- N743CK
- Make and model
- Boeing 747446
- Aircraft serial
- 26350
- Aircraft time
- 119,640 hours, 19,029 cycles
- System (JASC)
- 5250 · Fixed Inner Doors
- Part
- Switch
- Part number
- UNKNOWN
- Condition
- Dirty
- Location
- Ckpt Door Lock
- 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.