The U.S. aircraft register, updated daily
Parts

Isolator Bushing

No failure report names the isolator bushing. 4 FAA approvals let 2 companies make a replacement isolator bushing, Keystone Helicopter Corporation holding the most (2).

Approved replacement parts 4 parts manufacturer approvals

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

For these models most: Boeing 747 (2), Boeing-Vertol 107 (2).

MakerPartReplacesFitsGrantedStatus
Jormac Aerospace INCISOLATOR BUSHING 47T8-210-210-101Modification PartBoeing 747-82016-08-16current
Jormac Aerospace INCISOLATOR BUSHING AAC1-ISO-S41-03BModification PartBoeing 747-82016-08-16current
Keystone Helicopter CorporationIsolator Bushing Angles 03107-10A101Modification PartBoeing 107-II, KV107-II & KV107-IIA2003-12-02current
Keystone Helicopter CorporationIsolator Bushing Shim 03107-20A201Modification PartBoeing 107-II, KV107-II & KV107-IIA2003-12-02current

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.