Blister
No failure report names the blister. 8 FAA approvals let 4 companies make a replacement blister, Spirit Aerosystems INC holding the most (3).
Approved replacement parts 8 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a blister and sell it as an approved part for the models named. These are the companies holding such approvals for a blister:
For these models most: Boeing 747 (3), Cessna 170 (1), Airbus Helicopters AS350 AStar (Écureuil), now H125 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Safran Cabin INC. | BLISTER 9702031-501 | 9702031-501 | DE HAVILLAND... DHC-8-300 SERIES | 2025-08-18 | current |
| Safran Cabin INC. | BLISTER 9702031-501 | 9702031-501 | DE HAVILLAND... DHC-8-200 SERIES | 2025-08-18 | current |
| Safran Cabin INC. | BLISTER 9702031-501 | 9702031-501 | DE HAVILLAND... DHC-8-100 SERIES | 2025-08-18 | current |
| Spirit Aerosystems INC | BLISTER ASSY 65B89661-88 | 65B89661-88 | Boeing 747-100B SERIES, 747-200B SERIES,... | 2007-03-02 | current |
| Spirit Aerosystems INC | BLISTER ASSY 65B89661-87 | 65B89661-87 | Boeing 747-100B SERIES, 747-200B SERIES,... | 2007-03-02 | current |
| Spirit Aerosystems INC | BLISTER ASSY 65B89661-87 | 65B89661-87 | Boeing 747-100B SERIES, 747-200B SERIES,... | 2006-01-30 | current |
| Geneva Aviation | RH Blister G12366-1 | Modification Part | Eurocopter France AS350B, BA, B1 | 2004-11-15 | current |
| Del-Air | Blister 4A026-3 | Modification Part | Cessna 170A and 170B | 1997-10-16 | current |
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.