# SDR ASAA2021112236696

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 22, 2021
- Submitted: November 30, 2021
- Operation: Air carrier
- Aircraft: [N467AS](https://openairdocs.org/aircraft/N467AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36362
- Aircraft time: 27,451 hours, 8,909 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: D71701100
- Condition: Discharged
- Location: Aft Cabin Ceilin
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021112236696

## Discrepancy

EMERGENCY LIGHTS COMMON TO POWER SUPPLY M1673 FAILED OPERATION TEST. GROUNDED - YES. REPLACED M1673 BATTERY. OPS CHECK GOOD B737-900 AMM 33-51-06.ODR EMAIL SENT.

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