The U.S. aircraft register, updated daily
Parts

Dbl Window

No failure report names the dbl window. 2 FAA approvals let 1 company make a replacement dbl window, A & C Products 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 dbl window and sell it as an approved part for the models named. These are the companies holding such approvals for a dbl window:

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

MakerPartReplacesFitsGrantedStatus
A & C Products INCDbl Window Unit Center PS-1591-08Modification PartGulfstream G-1159A2001-04-25current
A & C Products INCDbl Window Unit Center PS-1591-07Modification PartGulfstream G-1159A2001-04-25current

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.