# SDR VNAA2026061218801

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 9, 2026
- Submitted: June 12, 2026
- Operation: Air carrier
- Aircraft: [N602NN](https://openairdocs.org/aircraft/N602NN), registered now
- Make and model: Cndair CL6002D24
- Aircraft serial: 15463
- Aircraft time: 15,671 hours, 13,251 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Gcu
- Part number: 766283C
- Part serial: 2808
- Condition: Faulted
- Location: Zone 200
- Part time: 15,671 hours, 13,251 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/VNAA2026061218801

## Discrepancy

AAN AC ESS BUS FAIL, WILL NOT TRANSFER / REMOVED AND REPLACED GCU 1 IAW AMM 24€“11€“07€“000/400€“801. OPS CHECK GOOD. PERFORMED  SUCCESSFUL OPS CHECK OF ESS BUS TRANSFER SYSTEM IAW AMM 24€“51€“00€“710€“803.

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