# SDR ASAA2025011355250

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 13, 2025
- Submitted: January 15, 2025
- Operation: Air carrier
- Aircraft: [N248AK](https://openairdocs.org/aircraft/N248AK), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 62469
- Aircraft time: 30,923 hours, 10,033 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71702001
- Condition: Discharged
- 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/ASAA2025011355250

## Discrepancy

WHILE ACCOMPLISHING T/C 78233001 FOUND EMERGENCY LIGHTS AT THE FOLLOWING LOCATIONS INTERIOR OVERHEAD ROWS 3,7,11,17,21 EXTERIOR LEFT OVERWING FWD AND RIGHT OVERWING AFT TO BE INOP. GROUNDED - YES. REPLACED EMERGENCY LT BATTERY PACK ASSY AT ROWS 7 ABC, 22 ABC, 22 DEF ALL LT OP CHK GOOD. REF AMM 33-51-06.

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