# SDR ASAA2022020437339

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 4, 2022
- Submitted: February 8, 2022
- Operation: Air carrier
- Aircraft: [N552AS](https://openairdocs.org/aircraft/N552AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 34595
- Aircraft time: 53,436 hours, 18,442 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D1702001
- Condition: Inoperative
- Location: L1/R1 Door
- 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/ASAA2022020437339

## Discrepancy

NONE OF THE EMERGENCY LIGHTS AT L1/R1 AREA INSIDE OR OUTSIDE COME ON. GROUNDED - YES. REMOVED AND REPLACED POWER SUPPLY AND BATTERY OPS CHECKED GOOD IAW B737-800 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.