# SDR AALA202605153971

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 12, 2026
- Submitted: May 16, 2026
- Operation: Air carrier
- Aircraft: [N906AN](https://openairdocs.org/aircraft/N906AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29508
- Aircraft time: 70,680 hours, 29,495 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71701100
- Condition: Inoperative
- Location: Zone 200
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202605153971

## Discrepancy

AIRCRAFT WAS GROUNDED: EMERGENCY LIGHTS ENTIRELY INOPERATIVE ON BUSINESS CLASS ROWS ON EMERGENCY LIGHT TEST. FOUND M1675 POWER SUPPLY BAD, CUASING MULTIPLE LIGHTS TO BE INOPERATIVE. REMOVED AND REPLACED M1675 POWER SUPPLY. PER AMM 33-51-06. OPS CHECKS GOOD. ALL EMERGENCY LIGHTS IN CABIN WORKING NORMAL.

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