# SDR USAAD010172

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 30, 2001
- Submitted: April 24, 2001
- Operation: Air carrier
- Aircraft: [N820US](https://openairdocs.org/aircraft/N820US), registered now
- Make and model: Doug DC-9-82
- Registry model: [Doug DC-9-82](https://openairdocs.org/model/mcdonnell-douglas-dc-9-82) (OpenAirDocs)
- Aircraft serial: 49119
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 60030451LB
- Condition: Failed
- Location: Pax Cabin
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAAD010172

## Discrepancy

PIT - THE ENTRY WAY EMERGENCY LIGHTS WILL NOT STAY OFF WHEN ELECTICAL POWER IS REMOVED FROM THE AIRCRAFT.  MAINTENANCE REPLACED THE EMERGENCY LIGHT POWER SUPPLY.  (M)

---
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.