# SDR DXTA2021080646500

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 5, 2021
- Submitted: August 9, 2021
- Operation: Air carrier
- Aircraft: [N438QS](https://openairdocs.org/aircraft/N438QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500531
- Aircraft time: 1,586 hours, 1,200 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 7450LS00
- Part serial: 005279
- Condition: Defective
- Location: Emergency Lights
- Stage of operation: NR
- How discovered: V
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2021080646500

## Discrepancy

CABIN EMERG LIGHT: ALL CABIN EMERGENCY LIGHTS FLICKERING DURING FLIGHT WITH SWITCH IN ARM POSITION. THEY ALSO FLICKERED WITH SWITCH IN ON POSITION.  REMOVED FAULTY EMERGENCY BATT. #1 P/N 7450L.5-00 S/N 005279. REPLACED EMERGENCY BATT. #1 P/N 745CX..S-OO S/N 005465. REMOVED EMERGENCY BATT. #2 P/N 7450L.S-00 S/N 005269 PER CUSTOMER REQUEST.
REPLACED EMERGENCY BATT. #2 P/N 7450L.S-00 S/N 005470. OPS CHECKS GOOD. REF PHENOM 300 AMM 33-52-01

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