# SDR ASAA1159762

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 4, 2011
- Submitted: June 7, 2011
- Operation: Air carrier
- Aircraft: [N548AS](https://openairdocs.org/aircraft/N548AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 30020
- Aircraft time: 23,629 hours, 7,424 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: D71702001
- Condition: Failed
- Location: Cabin
- 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/ASAA1159762

## Discrepancy

EMERGENCY LIGHT BATTERIES M1674 M1673 AND M1671 FAILED DEEP CYCLE TEST.  CHANGED THREE EMERGENCY LIGHT BATTERIES IAW B737 800 AMM 33 51 06.  OPS CHECK NORMAL.

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