# SDR ABXA20260815367

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 15, 2026
- Submitted: August 17, 2026
- Operation: Air carrier
- Aircraft: [N764CK](https://openairdocs.org/aircraft/N764CK), registered now
- Make and model: Boeing 767-3P6
- Registry model: [Boeing 767-3P6](https://openairdocs.org/model/boeing-767-3p6) (OpenAirDocs)
- Aircraft serial: 26234
- Aircraft time: 90,032 hours, 28,411 cycles
- System (JASC): [2697 · Fire Protection System Wiring](https://openairdocs.org/jasc/2697)
- Part: Circuit Card
- Condition: Tripped
- Location: Fire Detection
- 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/ABXA20260815367

## Discrepancy

DURING POWER TRANSFER APU TO GPU, LT ENG FIRE LOOP 1 MESSAGE. RESET BOTH FUSE CARDS M681 (LOOP1) M683(LOOP 2) PERFORMED OPS TEST ON SYSTEM ALL CHECKED GOOD IAW AMM 26-10-01 ACFT REMAINS NO ETOPS. A/C RETURNED TO SERVICE.

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