SDR ABXA20260315105

Service difficulty report · Fire Loop · Boeing 767232

Difficulty date: March 14, 2026
Submitted: March 16, 2026
Operation: Air carrier
Aircraft: N744AX
Make and model: Boeing 767232
Aircraft serial: 22221
Aircraft time: 105,006 hours, 46,948 cycles
System (JASC): 2611 · Smoke Detection
Part: Fire Loop
Condition: Faulted
Location: Zone 400
Stage of operation: IN
How discovered: V
Nature of condition: J
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

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.