Bottom Skin
No failure report names the bottom skin. 7 FAA approvals let 3 companies make a replacement bottom skin, Triumph Aerostructures holding the most (3).
Approved replacement parts 7 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a bottom skin and sell it as an approved part for the models named. These are the companies holding such approvals for a bottom skin:
For these models most: Airbus A320 (5), Airbus A319 (5), Boeing PT-13 (2), Boeing A75 Stearman Kaydet (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Triumph Aerostructures | Bottom Skin Steel Straps, LH, SB 571179B03R07 | 571179B03R07 | Airbus A319-112, A319-115, A319-132 | 2016-08-31 | current |
| Triumph Aerostructures | Bottom Skin Steel Straps, RH, SB 571179B23R06 | 571179B23R06 | Airbus A319-112, A319-115, A319-132 | 2016-08-31 | current |
| Triumph Aerostructures | Bottom Skin Steel Straps, RH, SB 571179B23R06 | 571179B23R06 | Airbus A319-112, A319-115, A319-132 | 2016-08-31 | current |
| Vought Aircraft Industries INC | Bottom Skin Steel Straps, RH, SB 571179B23R03 | 571179B23R03 | Airbus A319-112, A319-115, A319-132 | 2016-05-30 | current |
| Vought Aircraft Industries INC | Bottom Skin Steel Straps, LH, SB 571179B03R04 | 571179B03R04 | Airbus A319-112, A319-115, A319-132 | 2016-05-30 | current |
| Big Sky Stearman | Bottom Skin BS75-1406U-3 | Modification Part | BOEING A75L3 75 (Army PT-13) A75 (Army... | 2010-02-21 | current |
| Big Sky Stearman | Bottom Skin BS75-1406L-3 | Modification Part | BOEING A75L3 75 (Army PT-13) A75 (Army... | 2010-02-21 | 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.