# SDR CALA2026081118472

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 10, 2026
- Submitted: August 11, 2026
- Operation: Air carrier
- Aircraft: [N17229](https://openairdocs.org/aircraft/N17229), registered now
- Make and model: Boeing 737824
- Aircraft serial: 28793
- Aircraft time: 82,066 hours, 30,769 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Test Button
- Condition: Stuck
- Location: Zone 200
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026081118472

## Discrepancy

EMERGENCY LIGHTS COME ON  IMMEDIATELY BY THEMSELVES. AFT CABIN EMERGENCY LIGHTS DON'T TURN OFF WITH SWITCH IN OFF POSITION. FOUND AFT MODULE M1672 TEST BUTTON STUCK IN TEST MODE. CYCLED BUTTON AND PERFORMED EMERGENCY LIGHT TEST . OPS CHECK NORMAL REFERENCE AMM 33-51-00-720-801. ADD EMP:U030756

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