# SDR TWAA9713703

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 22, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N931L
- Make and model: Doug DC-9-32
- Registry model: [Doug DC-9-32](https://openairdocs.org/model/mcdonnell-douglas-dc-9-32) (OpenAirDocs)
- Aircraft serial: 47173
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 41B030CF00101
- Condition: Inoperative
- Location: Cabin
- Stage of operation: CR
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TWAA9713703

## Discrepancy

STL - FLT 90 - EMERGENCY LIGHTS ON ALL TIME IN FIRST CLASS.  ONLY WAY TO TURN OFF IS IN EMERGENCY POWER.  THEY COME ON IN ARMED POSITION.  REPLACED BATTERY POWER SUPPLY TWA PART NR 293-0784.  (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.