SDR YENA2025110401086

Service difficulty report · Coupler · Airbus A321271NX

Difficulty date: November 2, 2025
Submitted: November 4, 2025
Operation: Air carrier
Aircraft: N4083J
Make and model: Airbus A321271NX
Aircraft serial: 11903
Aircraft time: 5,854 hours, 875 cycles
System (JASC): 2397 · Communications System Wiring
Part: Coupler
Part number: 9640453001
Part serial: 07203
Condition: Damaged
Location: Zone 100
Part time: 5,854 hours, 875 cycles
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

FLT#20, LHR-JFK. (ETOPS) "HF 1 IS VERY GARBLED WHEN RECEIVING. ATC CAN HEAR US, BUT WE CANNOT HEAR THEM. WE TRIED MULTIPLE FREQUENCIES, AND THEY WERE ALL VERY GARBLED; REMOVED AND REPLACED HF 1 COUPLER W/ REF TO 23-11-36. REF LP 4446964 ITEM 1 FOR GROUND VERIFICATION"

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