The U.S. aircraft register, updated daily
Parts

Cutter Ring

No failure report names the cutter ring. 3 FAA approvals let 2 companies make a replacement cutter ring, Wencor LLC (Formerly Dixie Aerospace LLC) holding the most (2).

Approved replacement parts 3 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a cutter ring and sell it as an approved part for the models named. These are the companies holding such approvals for a cutter ring:

For these models most: Airbus A340 (2), Airbus A321 (2), Airbus A320 (2), Airbus A319 (2).

MakerPartReplacesFitsGrantedStatus
Snj Aero Machining, INCCutter Ring 3504886-1SNJHoneywell 3504886-1CFM International CFM56-7B20, CFM56-7B20E, CFM56-7B20/22018-07-15current
Wencor LLC (Formerly Dixie Aerospace LLC)Cutter Ring Assembly 3507482-3WDHoneywell 3507482-3Airbus A318-100 series, A319-100 series,...2010-08-03current
Wencor LLC (Formerly Dixie Aerospace LLC)Cutter Ring Assembly 3507465-2WDHoneywell 3507465-2Airbus A318-100 series, A319-100 series,...2010-08-03current

Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.