The U.S. aircraft register, updated daily
Parts

Filter Elements

No failure report names the filter elements. 2 FAA approvals let 1 company make a replacement filter elements, Textron Filtration Systems holding the most (2).

Approved replacement parts 2 parts manufacturer approvals

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

MakerPartReplacesFitsGrantedStatus
Textron Filtration SystemsFilter Elements 7511945, 7581470, 75858917511945, 7581470, 7585891Lockheed L-1011-385-1, -385-1-14, -385-1-151992-01-12current
Textron Filtration SystemsFilter Elements 7579643, 7591670-101,...7579643, 7591670-101, 7591658-101, 7591684-101Fokker 50, and F281992-01-12current

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.