# SDR KCSA2026033017

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 30, 2026
- Submitted: April 2, 2026
- Operation: Air carrier
- Aircraft: [N709CK](https://openairdocs.org/aircraft/N709CK), registered now
- Make and model: Boeing 747-4B5
- Registry model: [Boeing 747-4B5](https://openairdocs.org/model/boeing-747-4b5) (OpenAirDocs)
- Aircraft serial: 26396
- Aircraft time: 112,596 hours, 18,525 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Light
- Condition: Inoperative
- Location: Zone 200
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/KCSA2026033017

## Discrepancy

MULTIPLE SIDEWALL LIGHTS INOP ON MAIN DECK.   REMOVED AND REPLACED MULTIPLE SIDEWALL LIGHTS IAW AMM 33-51-00. ALL CHECKS GOOD.  NO DEFECTS NOTED.

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