# SDR UPS08151744

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 2, 2008
- Submitted: March 5, 2008
- Operation: Air carrier
- Aircraft: [N124UP](https://openairdocs.org/aircraft/N124UP), registered now
- Make and model: Airbus A300 F4-622R
- Registry model: [Airbus A300 F4-622R](https://openairdocs.org/model/airbus-a300-f4-622r) (OpenAirDocs)
- Aircraft serial: 0808
- System (JASC): [2420 · AC Generation System](https://openairdocs.org/jasc/2420)
- Part: Gcu
- Condition: Failed
- Location: Cockpit
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS08151744

## Discrepancy

ATB - PRIMARY  FLT AND NAV DISPLAYS BLANKING.  C/W TSM 24-00-00 FAULT ISOLATION CH GPCU BITE.  GCU FAILED.  REMOVED AND REPLACED NR 2 ENGINE GCU REF A300 MM 24-22-12-00.  PERFORMED OPERATIONAL TEST REF AMM 24-41-00-05.  TESTS OK, OK TO CONTINUE SERVICE.

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