# SDR SWAA2021073097628

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 24, 2021
- Submitted: July 30, 2021
- Operation: Air carrier
- Aircraft: N751SW
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29803
- Aircraft time: 74,739 hours, 44,231 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Inoperative
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2021073097628

## Discrepancy

SEVERAL EMERGENCY LIGHTS INOP BY AFT ENTRY/SERVICE DOOR AREA. / [01] PERFORMED T/S PER B737 FIN 33-50 TASK 801 AND FOUND BATTERY PACK M1672 PART# D717-01-100; S/N: 5570 DEFECTIVE.; [02] VERIFIED; [03] REMOVED AND REPLACED BATTERY PACK AND CHARGER ASSY AS PER B737 AMM 33-51-06-960-806 AND 33-51-06-960-805. PERFORMED OPS CHECK. TEST OK.<BR>AAR TAG WN6141 FOR CHARGER ASSY <BR>AAR TAG A05070 FOR BATTERY PARK; [04] VERIFIED STEP 3

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