# SDR CALA2026011312925

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 2026
- Submitted: January 13, 2026
- Operation: Air carrier
- Aircraft: [N24212](https://openairdocs.org/aircraft/N24212), registered now
- Make and model: Boeing 737824
- Aircraft serial: 28772
- Aircraft time: 80,358 hours, 29,912 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: Inoperative
- 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/CALA2026011312925

## Discrepancy

AFT MOST RIGHT HAND EMERGENCY LIGHT NOT WORKING. REMOVED AND REPLACED R2 OVERWING EMERGENCY LIGHT BULB IAW AMM 33-51-04. PERFORMED OPS TEST IAW AMM 33-51-00. NO FIX, REQUIRES FURTHER TROUBLESHOOTING.  REMOVED AND REPLACED BATTERY PACK M1671 IAW AMM 33-51-06-960-805, NO FIX. REPLACED THE LAMP IAW AMM 33-51-04-960-801. POSITIVE FIX. OPS CHECKED GOOD.

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