# SDR DXTA2026012606678

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 25, 2026
- Submitted: January 26, 2026
- Operation: Air carrier
- Aircraft: [N905QS](https://openairdocs.org/aircraft/N905QS), registered now
- Make and model: Cessna 680A
- Registry model: [Cessna 680A](https://openairdocs.org/model/cessna-680a) (OpenAirDocs)
- Aircraft serial: 680A0319
- Aircraft time: 4,142 hours, 2,743 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 64300281
- Part serial: G2511744
- Condition: Inoperative
- Location: Zone 200
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2026012606678

## Discrepancy

TWO EMERGENCY LIGHTS DO NOT ILLUMINATE IN THE ARM POSITION.  NR 1 BELOW THE LAV SEAT LIGHT NR 2 BULKHEAD BEHIND SEAT 7 LIGHT.  WHEN SWITCH WAS MOVED FROM OFF TO ON POSITION, A AUDIBLE POPPING NOISE WAS HEARD.  AFTER WHICH ALL THE EMER LIGHTS WENT OUT.   REPLACED EMERGENCY BATTERY PACKS. OPS CHECK GOOD. IAW AMM 33-55-06

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.