# SDR CALA2023051701522

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 16, 2023
- Submitted: May 17, 2023
- Operation: Air carrier
- Aircraft: [N53442](https://openairdocs.org/aircraft/N53442), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 33536
- Aircraft time: 44,530 hours, 15,547 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: No Test
- Location: M1670
- 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/CALA2023051701522

## Discrepancy

EMERGENCY POWER PACK, M1670, FAILS EMERGENCY LIGHTING FUNCTIONAL CHECK, BATTERY DISCHARGES IN LESS THAN 8 MINS (REF. AAR NR 99970929). REMOVED M1670 BATTERY PACK IAW B737 AMM 33-51-06-960-805; INSTALLED NEW BATTERY PACK M1670 IAW B737 AMM 33-51-06-960-805,INSTALLATION TEST GOOD (SDR #1032413) (WORK ACCOMPLISHED BY V937131 AND AAR QC A-83 V935067).

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