# SDR CALA2023120403537

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 3, 2023
- Submitted: December 4, 2023
- Operation: Air carrier
- Aircraft: [N62849](https://openairdocs.org/aircraft/N62849), registered now
- Make and model: Boeing 737-900ER
- Registry model: [Boeing 737-900ER](https://openairdocs.org/model/boeing-737-900er) (OpenAirDocs)
- Aircraft serial: 42204
- Aircraft time: 28,046 hours, 10,124 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Part serial: 330075
- Condition: Unknown
- Location: Aft Passenger Ca
- 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/CALA2023120403537

## Discrepancy

EMERGENCY LIGHTING SYSTEM OPERATIONAL CHECK  {B737-33-3-0235} - TWO AFT CABIN RH CEILING EMERGENCY FLOODLIGHTS INOP REMOVED CEILING PANEL IAW AMM TASK 25-21-45-000-803-001. :1 REPLACED BATTERY PACK M2627 IAW AMM TASK 33-51-06-960-805. EMERGENCY LIGHTS OPS CHECKED OKAY. REINSTALLED CEILONG PANEL IAW AMM TASK 25-21-45-400-803-001 PARTS USED:  99-3351-3-0015,QTY IDT C/W FOR TWO AFT CABIN RH CEILING EMERGENCY LIGHT BATTERY REPLACEMENT.

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