The U.S. aircraft register, updated daily
Parts

Exhaust Modification

No failure report names the exhaust modification. 2 FAA approvals let 2 companies make a replacement exhaust modification, Bae Systems INC holding the most (1).

Approved replacement parts 2 parts manufacturer approvals

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

For these models most: Airbus Helicopters AS332 (2).

MakerPartReplacesFitsGrantedStatus
Bae SystemsExhaust Modification Kit 8401637-1Modification PartEurocopter France AS332L1 Super Puma2005-10-24current
Bae Systems INCExhaust Modification Kit 8401637-1Modification PartEurocopter France AS332L1 Super Puma2005-10-24current

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.