# SDR DXTA2022112874910

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 26, 2022
- Submitted: November 28, 2022
- Operation: Air carrier
- Aircraft: [N366QS](https://openairdocs.org/aircraft/N366QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500268
- Aircraft time: 6,723 hours, 5,222 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 7450LS00
- Part serial: 005115
- Condition: Failed
- Location: Emergency Lights
- Stage of operation: CR
- 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/DXTA2022112874910

## Discrepancy

DURING FLIGHT CABIN EMERGENCY LIGHTS STARTED FLICKERING AND CONTINUED TO DESTINATION.  THEY GOT MUCH DIMMER BY THE TIME OF LANDING.  C/W FIM 488S-33-50-00-8 I 0-802.  AN INCORRECT FUNCTIONING OF THE EMERGENCY LIGHTS, FLICKER OR BLINKING. FOUND EMERGENCY BATTERIES 1 AND 2 HAD FAILED. FOUND BOTH BATTERIES FAILED TEST.   REMOVED BOTH EMERGENCY BATTERIES AND INSTALLED REPAIRED UNITS IAW AMM 33-52-01-400-801-A OPS CHECKED GOOD.

---
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.