# SDR ABXA20260711316

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 11, 2026
- Submitted: July 13, 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: 89,914 hours, 28,355 cycles
- System (JASC): [2697 · Fire Protection System Wiring](https://openairdocs.org/jasc/2697)
- Part: Circuit Card
- Part number: 89873202
- Part serial: 1102
- Condition: Unknown
- Location: Affolts
- Part time: 3,617 hours, 2,032 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/ABXA20260711316

## Discrepancy

L ENG FIRE LOOP 1 STATUS MESSAGE  AC GROUNDED ,CONDUCTED T/S PER FIM 26-11 FT 804, CONTINUITY CHECK PASS. INTEGRITY RESISTANCE FROM AFOLTS CARD M681 PINS 20 & 21 14.1 OHM. PER BLOCK 102, SWAPPED M681 AND M682 AFOLTS CARDS, MESSAGE DID NOT RETURN. A/C VERIFIED NO ETOPS RETURNED AC TO SERVICE

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