# SDR ASAA2026031464873

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 14, 2026
- Submitted: March 17, 2026
- Operation: Air carrier
- Aircraft: [N294AK](https://openairdocs.org/aircraft/N294AK), registered now
- Make and model: Boeing 737-900ER
- Registry model: [Boeing 737-900ER](https://openairdocs.org/model/boeing-737-900er) (OpenAirDocs)
- Aircraft serial: 64303
- Aircraft time: 26,007 hours, 8,171 cycles
- Engine: Cfmint CFM567B27E
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- 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/ASAA2026031464873

## Discrepancy

EMERGENCY AISLE LIGHTS AT SEAT ROWS 25D AND 29D WON'T STAY ON. GROUNDED - YES. OPENED AND CLOSED CEILING PANEL TO ACCESS EMERGENCY LIGHT POWER SUPPLY M2627 IAW AMM 25-21-45-400-803-001. REMOVED AND REPLACED POWER SUPPLY M2627 IAW AMM 33-51-06-960-806. EMERGENCY LIGHTS OPS CHECK GOOD IAW AMM 33-51-06-960-806.

---
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.