The U.S. aircraft register, updated daily
Parts

Bubble

No failure report names the bubble. 20 FAA approvals let 4 companies make a replacement bubble, Ten Cate Aerospace INC holding the most (5).

Approved replacement parts 20 parts manufacturer approvals

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

For these models most: Hiller UH-12 (8), Bell 47 (8), Fairchild Hiller FH-1100 (4).

MakerPartReplacesFitsGrantedStatus
Nordam Transparency DivReplacement Bubble 47-DG-200-5, -7BELLHelicopter 47-360-181-189BELL 47G-2A-1 47G-3B-1, 47G4, 47G4A1999-10-12current
Nordam Transparency DivReplacement Lower Bubble Assy. PFH-1100-20-3, -4FH1100 Manufacturing Corporation24-64001-161, -167FH1100 Manufacturing... FH-11001999-10-12current
Nordam Transparency DivReplacement Bubble 47-DG-200-1, -3BELLHelicopter 47-360-181-119, -153BELL 47D1, 47G, 47G21999-10-12current
Nordam Transparency DivReplacement Bubble Assy P-UH-12E-4, -5, -6Hiller Aviation 64004-111, -121Hiller Aviation UH-12 E, C, D UH-12E-L1999-10-12current
Nordam Transparency DivReplacement Bubble Assy P-UH-12E-1, -2, -3Hiller Aviation64004-120, -129Hiller Aviation UH-12 E, C, D UH-12E-L1999-10-12current
Nordam-TexasReplacement Bubble Assembly P-UH-12E-4, -5, -6Hiller 64004-111, -121Hiller Aviation UH-12 E, C, D1997-08-20current
Nordam-TexasReplacement Bubble Assembly P-UH-12E-1, -2, -3Hiller 64004-120, -129Hiller Aviation UH-12 E, C, D1997-08-20current
Nordam-TexasReplacement Bubble 47-DG-200-5, -7Bell Helicopter 47-360-181-189Bell 47G-2A-1, 47G-3B-1, 47G41997-02-12current
Nordam-TexasReplacement Bubble 47-DG-200-1, -3Bell Helicopter 47-360-181-119, -153Bell 47D1, 47G, 47G21997-02-12current
Nordam-TexasReplacement Lower Bubble Assembly PFH-1100-20-3, -4Fairchild Hiller 24-64001-161, -167Hiller Aviation FH-11001997-02-12current
M & N AerospaceReplacement Bubble 47-DG-200-5, -7Bell 47-360-181-189Bell 47G-2A-1, 47G-3B-1, 47G41993-09-09current
M & N AerospaceReplacement Bubble 47-DG-200-1, -3Bell 47-360-181-119, -153Bell 47D1, 47G, G21993-09-09current
M & N AerospaceReplacement Bubble Assembly P-UH-12-4, -5, -6Hiller 64004-111, -121Hiller Aviation UH-12C, D, UH-12E1993-09-09current
M & N AerospaceReplacement Lower Bubble Assembly PFH-1100-20-3, -4Hiller 24-64001-161, -167Hiller Aviation FH-11001993-09-09current
M & N AerospaceReplacement Bubble Assembly P-UH-12E, -1, -2, -3Hiller 64004-120, -129Hiller Aviation UH-12C, D, UH-12E1993-09-09current
Ten Cate Aerospace INCReplacement Bubble 47-DG-200-5, -7Bell Helicopter 47-360-181-189Bell 47G-2A-1, 47G-3B-1, 47G41993-05-16current
Ten Cate Aerospace INCReplacement Bubble 47-DG-200-1, -3Bell Helicopter 47-360-181-119, -153Bell 47D1, 47G, 47G21993-05-16current
Ten Cate Aerospace INCReplacement Lower Bubble Assembly PFH-1100-20-3, -4Fairchild Hiller 24-64001-161, -167Hiller Aviation FH-11001993-05-16current
Ten Cate Aerospace INCReplacement Bubble Assembly P-UHE-12-4, -5, -6Hiller 64004-111, -121Hiller Aviation UH-12E, C, D1993-05-16current
Ten Cate Aerospace INCReplacement Bubble Assembly P-UH-12E-1, -2, -3Hiller 64004-120, -129Hiller Aviation UH-12E, C, D1993-05-16current

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.