Service difficulty report · Circuit Breaker · Airbus A321231

Difficulty date
July 24, 2025
Submitted
July 28, 2025
Operation
Air carrier
Aircraft
N660NK
Make and model
Airbus A321231
Aircraft serial
6804
Aircraft time
32,470 hours, 14,536 cycles
Part
Circuit Breaker
Condition
Tripped
Location
Zone 200
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

CIRCUIT BREAKERS M6 & M7 OPENED IN FLIGHT. BOTH THE AFT AND FWD CARGO SMOKE ILLUMINATED ON THE AIRCRAFT BUT NO MASTER WARNING OR ECAM DETECTED. CREW FOLLOWED MX PROCEDURES AND FEELS SAFE TO CONTINUE. NO EMERGENCY DECLARED AND NO CONFERENCE CALL REQUIRED. MX WILL TROUBLESHOOT UPON ARRIVAL IN LAX. -RESET C/B M6 & M7 NO DEFECTS NOTED. PERFORMED CIDS BITE TEST. OK FOR SVC. REF AMM 23-77-00. MOC # 114724.

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