# SDR DALA2026070203891

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 1, 2026
- Submitted: July 3, 2026
- Operation: Air carrier
- Aircraft: [N801DZ](https://openairdocs.org/aircraft/N801DZ), registered now
- Make and model: Boeing 737932ER
- Aircraft serial: 31912
- Aircraft time: 39,782 hours, 15,483 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Faulted
- 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/DALA2026070203891

## Discrepancy

JUST PRIOR TO PUSHBACK EMER LIGHTS AT LEFT O/W EXIT AND AFT LEFT DOOR ILLUMINATED WITH SWITCH IN ARM POSITION.   FOUND C/B LEFT AFT CHG POPPED. FOUND POWER SUPPLY M01673 AT FAULT. REMOVED AND REPLACED POWER SUPPLY M01673. OPS CK GOOD. REF WDM 33-51-11. (8722042) AIRCRAFT WAS GROUNDED

---
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.