# SDR VNAA0302015

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 16, 2003
- Submitted: February 18, 2003
- Operation: Air carrier
- Aircraft: [N459PS](https://openairdocs.org/aircraft/N459PS), registered now
- Make and model: Dorner DO328100
- Aircraft serial: 3070
- Aircraft time: 17,872 hours, 15,422 cycles
- Engine: Pwa PW119B
- Propeller: Hartzl HDE6C3B
- System (JASC): [3300 · Lighting System](https://openairdocs.org/jasc/3300)
- Part: Power Supply
- Part number: 501122803
- Part serial: 7462
- Condition: Failed
- Location: Forward
- Part time: 18,729 hours, 16,365 cycles
- Component: Power Supply, 501122803
- Stage of operation: TX
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/VNAA0302015

## Discrepancy

THE CREW REPORTED THE EMERGENCY AND BACK UP BATTERIES FAIL TO TEST.  MAINTENANCE INSPECTED AND REPLACED BOTH EMERGENCY POWER SUPPLIES IN ACCORDANCE WITH DONIER MAINTENANCE MANUAL 33-00-00.  OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

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