# SDR CALA2026042915816

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 28, 2026
- Submitted: April 29, 2026
- Operation: Air carrier
- Aircraft: [N76516](https://openairdocs.org/aircraft/N76516), registered now
- Make and model: Boeing 737824
- Aircraft serial: 37096
- Aircraft time: 55,361 hours, 20,297 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- 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/CALA2026042915816

## Discrepancy

EMERGENCY LIGHTS - OPERATIONAL CHECK EMERGENCY LIGHTS OPERATIONAL CHECK - FLOOR PROXIMITY EMERGENCY ESCAPE PATH MARKING FROM 14CBA THROUGH 22CBA INOP SLAVED IN POWER SUPPLY FROM OPPOSITE SIDE OF PLANE, TEST OK REQUIRES NEW POWER SUPPLY NIS LAS REMOVED AND REPLACED LH MIDDLE POWER SUPPLY PER AMM 33-51-06-960-806 OPS CHECK GOOD.

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