The U.S. aircraft register, updated daily
Parts

Bkm Guidemaster

No failure report names the bkm guidemaster. 2 FAA approvals let 1 company make a replacement bkm guidemaster, Foxtronics INC 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 bkm guidemaster and sell it as an approved part for the models named. These are the companies holding such approvals for a bkm guidemaster:

For these models most: Gulfstream G-1159 Gulfstream II and III (2).

MakerPartReplacesFitsGrantedStatus
Foxtronics INCBKM Guidemaster 100-1Gulfstream G159, G11591995-10-31current
Foxtronics INCBKM Guidemaster 100-2Gulfstream G159, G11591995-10-31current

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.