# SDR 9JLA2021111919155

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 28, 2021
- Submitted: November 19, 2021
- Operation: Air carrier
- Aircraft: [N817BZ](https://openairdocs.org/aircraft/N817BZ), registered now
- Make and model: Cessna 560XL
- Registry model: [Cessna 560XL](https://openairdocs.org/model/cessna-560xl) (OpenAirDocs)
- Aircraft serial: 5605742
- Aircraft time: 4,625 hours, 3,764 cycles
- System (JASC): [2430 · DC Generating System](https://openairdocs.org/jasc/2430)
- Part: None
- Condition: None
- Stage of operation: IN
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9JLA2021111919155

## Discrepancy

DURING POSTFLIGHT CHECKS THE MAINTENANCE TEAM DISCOVERED A LEFT GENERATOR CONTROL UNIT (GCU) GROUND FAULT. THE MAINTENANCE VENDOR DISCOVERED A WIRING ISSUE AT THE PT003 AND JT003 CONNECTORS, PINS R AND S. THE PINS WERE REMOVED FROM THE CONNECTORS AND REPLACED WITH NEW PINS. OPS CHECKS WERE SATISFACTORY AND NO GROUND FAULTS FOUND. AIRCRAFT WAS RETURNED TO SERVICE

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