# SDR CALA2024122301622

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 21, 2024
- Submitted: December 23, 2024
- Operation: Air carrier
- Aircraft: [N37456](https://openairdocs.org/aircraft/N37456), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 37205
- Aircraft time: 39,005 hours, 14,267 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: No Test
- 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/CALA2024122301622

## Discrepancy

EMERGENCY LIGHTING SYSTEM OPERATIONAL CHECK  {B737-33-3-0235} - R/H EMERGENCY EXIT SIGN ABOVE OVERWING EXIT HATCHES DO NOT ILLUMINATE. REMOVED AND REPLACED BATTERY PACK REF AMM 31-51-06-960-805. OPS CHECK GOOD.PARTS USED:  99-3351-3-0015, QTY :1

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