# SDR ABXA20260315105

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 14, 2026
- Submitted: March 16, 2026
- Operation: Air carrier
- Aircraft: [N744AX](https://openairdocs.org/aircraft/N744AX), registered now
- Make and model: Boeing 767232
- Aircraft serial: 22221
- Aircraft time: 105,006 hours, 46,948 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Fire Loop
- Condition: Faulted
- Location: Zone 400
- 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/ABXA20260315105

## Discrepancy

DURING MAINTENANCE INSPECTION, RIGHT ENG FIRE LOOP 1 EICAS MSG.  REFERENCE B767 WDM 26-11-21, RAN LOOP 1 SYSTEM FROM D7996P, FOUND RESISTANCE TO BE 2250 OHMS. INDICATES THAT ONE OF THE LOOPS FOR SYSTEM 1 IS BAD, FORWARDED TO DI AND PLACARD PER MEL 26-11-1-1, NO MTC PROCEDURE APPLIED. MBCB 03/25/26.  A/C RETURNED TO SERVICE.

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