# SDR ASAA2021120536927

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 5, 2021
- Submitted: December 21, 2021
- Operation: Air carrier
- Aircraft: [N551AS](https://openairdocs.org/aircraft/N551AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 34593
- Aircraft time: 53,393 hours, 18,403 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: None
- Part number: ADD71701100
- Condition: Inoperative
- Location: Lh Overwing Exit
- Stage of operation: IN
- How discovered: 9
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021120536927

## Discrepancy

LH FWD OVERWING EMERGENCY BATTER CHARGER TEST BAD. GROUNDED - YES. REMOVED AND REPLACED L/H SIDE STATION 322 EMERGENCY LIGHT BATTERY PACK AND CHARGER OPS CHECK GOOD IAW B737-800 AMM 33-51-06-960-805- STEP 4.E OPS CHECK GOOD.

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