# SDR ASAA2022101640451

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 16, 2022
- Submitted: October 25, 2022
- Operation: Air carrier
- Aircraft: [N559AS](https://openairdocs.org/aircraft/N559AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35178
- Aircraft time: 56,417 hours, 16,549 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- 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/ASAA2022101640451

## Discrepancy

L4 DOOR AREA EMERGENCY LIGHTS INOP. GROUNDED - YES. REMOVED AND REPLACED M1673 BATTERY PACK S/N 415703 IAW B737-800 AMM 33-51-06-960-805, STEP E.5. OPERATIONAL TEST CHECKS GOOD IAW B737-800 AMM 33-51-06-960-805: STEP E.6.

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