# SDR KCSA20230725731

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 27, 2023
- Submitted: July 25, 2023
- Operation: Air carrier
- Aircraft: [N703CK](https://openairdocs.org/aircraft/N703CK), registered now
- Make and model: Boeing 747412
- Aircraft serial: 24226
- Aircraft time: 9,703 hours, 20,182 cycles
- System (JASC): [5200 · Doors](https://openairdocs.org/jasc/5200)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: UK
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/KCSA20230725731

## Discrepancy

DOOR UPPER DECK FLIGHT LOCK ENGINE INDICATING AND CREW ALERTING SYSTEM MESSAGE. PERFORMED OPERATIONS CHECK OF LEFT AND RIGHT UPPER DECK DOORS. OPERATIONS CHECKS GOOD IAW B747-400 AMM 52-23-00.

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