# SDR CALA2026032314754

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 21, 2026
- Submitted: March 23, 2026
- Operation: Air carrier
- Aircraft: [N73445](https://openairdocs.org/aircraft/N73445), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 40000
- Aircraft time: 46,486 hours, 16,995 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Part serial: 218116
- 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/CALA2026032314754

## Discrepancy

L2 DOOR EMERGENCY LIGHT SIGNS INOP.    REMOVE BATTERY PACK  AND REPLACE BATTERY PACK WITH A NEW BATTERY PACK P/N AD-D717-01-100 S/N 37688 5 AT AFT GALLEY CEILING PANEL LT IAW AMM 33-51-06-960 -805, AND PERFORMED EMERGENCY LIGHTS OPS TEST IAW AMM 33-51-00-720-801.TEST IS GOOD AT L2 DOOR EMERGENCY LIGH T SIGN.

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