# SDR DXTA2025091704958

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 14, 2025
- Submitted: September 17, 2025
- Operation: Air carrier
- Aircraft: N566QS
- Make and model: Cessna 560XL
- Registry model: [Cessna 560XL](https://openairdocs.org/model/cessna-560xl) (OpenAirDocs)
- Aircraft serial: 5605825
- Aircraft time: 14,673 hours, 11,107 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- 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/DXTA2025091704958

## Discrepancy

ALL FORWARD EMERGENCY EXIT LIGHTS INOP IN ARM OR ON POSITION WITH BATTERY OFF.  BATTERY PACK #1 RESET INERTIAL SWITCH VERIFIED CONNECTIONS TO BATTERY PACK #1 ARE GOOD,  NO CHANGE, ALL FORWAR LIGHTING STILL INOP,  SWAPPED BATTERY PACK #2 AND REPOSITIONED INTO #1.  PERFORMED OPS ALL FWD LIGHTING FULLY OPS.   ALL WORK DONE IAW AMM 33-50-00.  INSTALLED BATTERY PACK #2 BACK TO ITS ORIGINAL POSITION , #1 REQUIRES REPLACEMENT.   REMOVED FWD BATTERY PACK AND REPLACED WITH AN OVERHAULED BATTERY PACK. POWERED UP THE ACFT WITH AN EXTERNAL GPU ELECT POWER & CHARGED BATTERY PACKS FOR 1.75 HOURS, PERFORMED BATTERY PACKS FUNCTIONAL CHECK. BATTERY FUNCTIONAL CHECK & EMER LIGHTS OPS CHECK PASSED. WORK PERFORMED IAW AMM 33·50-01 & 33-50·00..

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