# SDR VNAA0101007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 10, 2001
- Submitted: January 29, 2001
- Operation: Air carrier
- Aircraft: [N442JS](https://openairdocs.org/aircraft/N442JS), registered now
- Make and model: Dorner DO328100
- Aircraft serial: 3060
- Aircraft time: 14,288 hours, 12,630 cycles
- Engine: Pwa PW119B
- Propeller: Hartzl HDE6C3B
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 501122803
- Part serial: 7602
- Condition: Failed
- Location: Cabin
- Part time: 11,742 hours, 10,338 cycles
- Stage of operation: UK
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/VNAA0101007

## Discrepancy

THE CREW REPORTED THAT THE EMERGENCY POWER SUPPLY WILL NOT TEST.  THE AIRCRAFT WAS FERRIED TO PIT WHERE MAINTENANCE INSPECT AND REPLACED THE EMERGENCY POWER SUPPLY IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-00-00.  OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

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