The U.S. aircraft register, updated daily
Parts

Am Ib

No failure report names the am ib. 4 FAA approvals let 1 company make a replacement am ib, Pro Star Precision Machining, LLC holding the most (4).

Approved replacement parts 4 parts manufacturer approvals

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

For these models most: Beechcraft B300 King Air 350 (4).

MakerPartReplacesFitsGrantedStatus
Pro Star Precision Machining, LLCAM Fwd LH IB Zee 3973-3-1FLIModification PartTextron Aviation B300, B300C2021-07-26current
Pro Star Precision Machining, LLCAM Fwd RH IB Zee 3973-3-1FRIModification PartTextron Aviation B300, B300C2021-07-26current
Pro Star Precision Machining, LLCAM Aft RH IB Zee 3973-3-1ARIModification PartTextron Aviation B300, B300C2021-07-26current
Pro Star Precision Machining, LLCAM Aft LH IB Zee 3973-3-1ALIModification PartTextron Aviation B300, B300C2021-07-26current

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.