# SDR DXTA2026022407015

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 23, 2026
- Submitted: February 24, 2026
- Operation: Air carrier
- Aircraft: [N771QS](https://openairdocs.org/aircraft/N771QS), registered now
- Make and model: Bombdr BD1001A10
- Aircraft serial: 20766
- Aircraft time: 8,201 hours, 4,710 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: BR9767001
- Part serial: C1556
- Condition: Faulted
- Location: Zone 200
- Stage of operation: NR
- 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/DXTA2026022407015

## Discrepancy

EMERGENCY LIGHT OVER SEAT 2L INOP. LIGHT OPERATES WITH CABLTS BUT NOT IN EMER LIGHTS ON POSITION.  OPERATED ONCE AFTER TURNING EMER LTS ON - OFF THEN BACK ON. NOW DOES NOT OPERATE IN EMER LTS ON. MAY BE INTERMITTENT. CORRECTIVE ACTION: REMOVED SUSPECTED EBPS PN: BR9767-001 SN: C1556 AND REPLACED WITH CUSTOMER SUPPLIED NEW POWER SUPPLY PN: BR9767-001 SN: C2778. OPS CHECKS GOOD NO DEFECTS NOTED. REF CL350 SMM 33-50-00

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