# SDR IXXA2023121108088

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 6, 2023
- Submitted: December 8, 2023
- Operation: Air carrier
- Aircraft: [N754CX](https://openairdocs.org/aircraft/N754CX), registered now
- Make and model: Boeing 757-2Y0
- Registry model: [Boeing 757-2Y0](https://openairdocs.org/model/boeing-757-2y0) (OpenAirDocs)
- Aircraft serial: 26154
- Aircraft time: 66,463 hours, 25,927 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Component: Battery
- Component part number: 20131A
- 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/IXXA2023121108088

## Discrepancy

DURING PRE-FLIGHT INSPECTIONS AND MAINTENANCE LINE TECH REPORTED RIGHT AFT EMERGENCY LIGHTS INOPERATIVE.  PER B757 FAULT ISOLATION MANUAL 33-51-802 REMOVED AND REPLACED BATTERY PACK IN POWER SUPPLY IAW B757 AIRCRAFT MAINTENANCE MANUAL 33-51-07. OPERATIONAL CHECK GOOD. NO ADDITIONAL FAULTS NOTED.

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