# SDR 2025FA0000086

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 6, 2025
- Submitted: February 6, 2025
- Operation: General aviation
- Aircraft: [N318AG](https://openairdocs.org/aircraft/N318AG), registered now
- Make and model: Gulstm GV
- Aircraft serial: 73056
- System (JASC): [2497 · Electrical Power System Wiring](https://openairdocs.org/jasc/2497)
- Part: Coupler
- Condition: Miswired
- Location: Zone 100
- Stage of operation: IN
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2025FA0000086

## Discrepancy

PERFORMED TROUBLESHOOTING IAW GVII-G600 IWDM REV.3 42-11-00.  MEASURED ASCB #2 BACKUP BUS END RESISTOR REF DES "103R8" IN SYSTEM MONITOR TEST PANEL SUCCESSFULLY.  GAINED ACCESS TO ASCB BUS COUPLER #1 AND FOUND WIRING STRIPPED FROM TOO LONG DISTANCE EXPOSING CENTER CONDUCTOR. THIS IS CAUSING BUS TO SHORT WITH BARE WIRES TOUCHING EACH OTHER

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