# SDR VNAA0212012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 7, 2002
- Submitted: December 13, 2002
- Operation: Air carrier
- Aircraft: N438JS
- Make and model: Dorner DO328100
- Aircraft serial: 3056
- Aircraft time: 18,842 hours, 16,493 cycles
- Engine: Pwa PW119B
- Propeller: Hartzl HDE6C3B
- System (JASC): [3100 · Indicating/Recording System](https://openairdocs.org/jasc/3100)
- Part: Power Supply
- Part number: 501122803
- Part serial: 7167
- Condition: Failed
- Location: Forward
- Part time: 17,642 hours, 15,334 cycles
- 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/VNAA0212012

## Discrepancy

THE CREW REPORTED THAT THE EMERGENCY POWER SUPPLY FAILS TO TEST.  MAINTENANCE INSPECTED AND REPLACED THE FORWARD EMERGENCY POWER SUPPLY IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 31-00-00.  OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

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