Service difficulty report · Fire Detector · Airbus A321271NX

Difficulty date
July 24, 2025
Submitted
July 25, 2025
Operation
Air carrier
Aircraft
N4048J
Make and model
Airbus A321271NX
Aircraft serial
10446
Aircraft time
15,031 hours, 2,228 cycles
Part
Fire Detector
Part number
9090120201
Part serial
A0052341
Condition
Faulted
Location
Zone 400
Part time
11,732 hours, 2,232 cycles
Stage of operation
NR
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

FLT#32, AMS-BOS. (ETOPS) "ENG FIRE LOOP FAULT LOOP B ( ENGINE FIRE DETECTION SYSTEMS 2) LOOP B ); REF LPS 3504565-1/2 (REPLACED ENG 2 PYLON LOOP B HARNESS 41WD2 IAW AMM 26-12-63. OPS CHKS REQD REF LP 3504569-1 FOR OPS CHKS) AND 3504566-1/2(REPLACED ENG 2 PYLON LOOP B 4WD2 IAW AMM 26-12-16 OPS CHKS REQD REF LP 3504569-1 FOR OPS CHKS) (REPLACED ENG 2 PYLON LOOP B/A RACK ASSY IAW AMM 26-12-16) FOR TROUBLE SHOOTING AND CORRECTIVE ACTIONS MDDR CLEARED MX-4 UPDATED PLACARD REMOVED.

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