# SDR I5EA2021072000002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 2021
- Submitted: July 20, 2021
- Operation: Air carrier
- Aircraft: N531AU
- Make and model: Boeing 737-3B7
- Registry model: [Boeing 737-3B7](https://openairdocs.org/model/boeing-737-3b7) (OpenAirDocs)
- Aircraft serial: 24478
- Aircraft time: 72,011 hours, 45,210 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ABS20131A
- Part serial: 911680
- Condition: No Test
- Location: Emergency Lights
- 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/I5EA2021072000002

## Discrepancy

EMERGENCY LIGHT INOP AT ROW 20 L/H.. REMOVED AND REPLACED BATTERY PACK ON M1135 POWER SUPPLY AT STA. 629R IAW B-737-300 AMM 33-51-51. OPS CHECK GOOD.

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