# SDR CALA2025032403138

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 23, 2025
- Submitted: March 24, 2025
- Operation: Air carrier
- Aircraft: [N75429](https://openairdocs.org/aircraft/N75429), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 30130
- Aircraft time: 51,084 hours, 18,193 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71701100
- Condition: Discharged
- Location: Zone 200
- 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/CALA2025032403138

## Discrepancy

FAILED EMERGENCY LIGHT SYSTEM BATTERY PACK M1673 (REF AAR NR 1000028373). REMOVED BATTERY PACK M1673 ON LH SIDE FORWARD CABIN IAW B737 AMM 33-51-06-960-805. AND PERFORMED OPS. TEST. IAW B 737AMM 33-51-00-710-801. TEST PASS.   FAILED FUNCTIONAL CHECK DURING D CHECK IN RFD REMOVED BATTERY PACK M1673 ON LH SIDE FORWARD CABIN IAW B737 AMM 33-51-06-960-805. INSTALLED BATTERY PACK M1673 ON LH SIDE FORWAR D CABIN IAW B737 AMM 33-51-06-960-805 AND PERFORMED OPS. TEST. I AW B 737AMM 33-51-00-710-801. TEST PASS.

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