# SDR DALA2026052503145

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 24, 2026
- Submitted: May 25, 2026
- Operation: Air carrier
- Aircraft: [N122DU](https://openairdocs.org/aircraft/N122DU), registered now
- Make and model: Airbus BD-500-1A10
- Registry model: [Airbus BD-500-1A10](https://openairdocs.org/model/airbus-canada-ltd-ptnrsp-bd-500-1a10) (OpenAirDocs)
- Aircraft serial: 50041
- Aircraft time: 16,684 hours, 7,791 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Inoperative
- Location: Zone 200
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026052503145

## Discrepancy

EXTERIOR EMERGENCY LIGHTS SYSTEMS - DOOR EMERGENCY LIGHTS / L 4 AND R 4 DOORS EXTERIOR EMERGENCY LIGHTS OUT.   REPLACED AFT LT EXTERIOR EMERGENCY LIGHT PER A220 AMM 33-55, OPS CHECK GOOD. REPLACED EPSU (PS5) PER AMM 33-51. OPS CHECK GOOD. (LP 8382986 - AIRCRAFT WAS GROUNDED)

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