The U.S. aircraft register, updated daily
Parts

Bubble Wide

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

For these models most: Bell 47 (2).

MakerPartReplacesFitsGrantedStatus
Tulsa Heliparts INCBubble Assembly Wide Cabin 90-360-181-5, -7Bell 47-360-181-189Bell 47G-2A-1, 47G-3B-1, 47G-3B-21996-01-10current
Tulsa Heliparts INCBubble Assembly Wide 90-360-181-5, -7Bell 47-360-181-189Bell 47G2A1, 47G3B1, 47G3B21993-08-19current

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.