# SDR CALA2025060205168

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 30, 2025
- Submitted: June 2, 2025
- Operation: Air carrier
- Aircraft: [N31412](https://openairdocs.org/aircraft/N31412), registered now
- Make and model: Boeing 737924
- Aircraft serial: 30129
- Aircraft time: 63,868 hours, 26,421 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: Weak
- 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/CALA2025060205168

## Discrepancy

MULTIPLE EMERGENCY AISLE LIGHTS IN THE CABIN HAVE A WEAK CHARGE, SUPPORT TASK NSA EMX N/R 00117. COMPLETED SDR TROUBLESHOT AND FOUND M1676 EMERGENCY LIGHT BATTERY PACK NEAR SEAT ROW 7DEF TO BE WEAK. REMOVED AND REPLACED BATTERY PACK SN: 204237 WITH SERVICEABLE BATTERY PACK SN: 260751 IAW UAL B737-900 AMM 35-51-06-960-805. EMERGENCY LIGHT OPS CHECK GOOD IAW UAL B737-900 AMM 33-51-06-960-805. REMOVED AND REINSTALLED SIDEWALL CARPET RISER TO FOM IAW UAL B737-900 AMM SUBTASK 33-51-06-410-01 2. SDR ATTACHED. DATA WAS TRANSCRIBED FROM NSA EMX N/R 00117.

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