# SDR ASAA2023051443249

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 14, 2023
- Submitted: May 18, 2023
- Operation: Air carrier
- Aircraft: [N487AS](https://openairdocs.org/aircraft/N487AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44108
- Aircraft time: 28,028 hours, 8,607 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: D71701100
- Condition: Inoperative
- Location: Main Cabin
- 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/ASAA2023051443249

## Discrepancy

EMERGENCY LIGHTS ASSOCIATED WITH POSER SUPPLY M1673 ARE INOP. GROUNDED - YES. REMOVED & REPLACED M1673 BATTERY & INSTALLATION TEST GOOD IAW B737-900 AMM 33-51-06-960-805.

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