# SDR 4381

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 7, 2006
- Submitted: February 16, 2006
- Operation: General aviation
- Aircraft: [N1509](https://openairdocs.org/aircraft/N1509), registered now
- Make and model: Piper PA-30
- Registry model: [Piper PA-30](https://openairdocs.org/model/piper-pa-30) (OpenAirDocs)
- Aircraft serial: 30798
- Aircraft time: 8,754 hours, 10,908 cycles
- System (JASC): [2420 · AC Generation System](https://openairdocs.org/jasc/2420)
- Part: Gcu
- Part number: 51530007B
- Part serial: 10853A
- Condition: Inoperative
- Location: Lt Gen
- Stage of operation: IN
- How discovered: O
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/4381

## Discrepancy

AIRCRAFT CAME IN FOR GENERATOR PARALLELING.  LEFT GENERATOR CONTROL UNIT NEEDED REPLACEMENT.  INSTALLED OVERHAULED GCU S/N 10853A; GCU FAILED ON INITIAL RESET.  INSTALLED SECOND GCU S/N 9183; GCU FAILED ON INITIAL RESET. (BOTH ABOVE GCU'S HAD JUST BEEN OVERHAULED BY PRECISION ELECTRONICS, INC., ATLANTA, GA FOR THE SAME INITIAL FAILURE PROBLEM).  INSTALLED A THIRD GCU S/N 9657; WHICH FUNCTIONED CORRECTLY.  (ALSO OVERHAULED BY PRECISION ELECTRONICS, INC.)

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