# SDR SWAA2020031042321

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 9, 2020
- Submitted: March 10, 2020
- Operation: Air carrier
- Aircraft: [N7745A](https://openairdocs.org/aircraft/N7745A), registered now
- Make and model: Boeing 737-7BD
- Registry model: [Boeing 737-7BD](https://openairdocs.org/model/boeing-737-7bd) (OpenAirDocs)
- Aircraft serial: 33933
- Aircraft time: 42,015 hours, 21,094 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71701100
- Part serial: 21957
- Condition: Faulty
- 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/SWAA2020031042321

## Discrepancy

**EMERGENCY BATTERY PACK M1673 WILL NOT HOLD CHARGE         REMOVED BAD BATTERY PACK M1673 AND REPLACED WITH SERVICEABLE BATTERY PACK FROM A/C 296 IAW AMM 33-51-06-960-805. PERFORMED M1673 BATTERY PACK INSTALL TEST, CHECKS GOOD IAW AMM 33-51-06-960-805 STEP 4.D.5 (POS:M1673; P/N OFF:D717-01-100; S/N OFF:21957; P/N ON:D717-01-100; S/N ON:31769)

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