Service difficulty report · Fire Loop · Airbus A321211

Difficulty date
October 7, 2026
Submitted
October 11, 2026
Operation
Air carrier
Aircraft
N155UW
Make and model
Airbus A321211
Aircraft serial
5659
Aircraft time
40,043 hours, 16,553 cycles
Part
Fire Loop
Condition
False Indication
Location
Zone 400
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

AIRCRAFT WAS GROUNDED: ENG 1 FIRE ECAM INDICATION TWICE ON CLIMB OUT OF 8,000 FEET. BOTH TIMES CLEARED WITHIN A COUPLE OF SECONDS OF EACH OTHER AND DID NOT REPEAT. NO OTHER INDICATIONS NOTED. MAINTENANCE REPORTED BY THE TIME AIRCRAFT HAD ARRIVED AT THE HANGAR NO LOOP A FAULT WAS PRESENT, MAINTENANCE FOUND TOTAL LOOP RESISTANCE TO BE 1512 OHMS WHICH THE NORMAL OPERATING RANGE IS BETWEEN 1425 AND 1575 OHMS Ï¿½ MAINTENANCE CLEANED BOTH LOOP A AND B CONNECTIONS AS WELL AS INSPECTED THE CONNECTORS FOR DAMAGE AND NO DAMAGE WAS NOTED MAINTENANCE ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK AND WAS UNABLE TO DUPLICATE THE FAULT

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