Bottom Cowl
No failure report names the bottom cowl. 6 FAA approvals let 3 companies make a replacement bottom cowl, Aviation Products Systems INC holding the most (4).
Approved replacement parts 6 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a bottom cowl and sell it as an approved part for the models named. These are the companies holding such approvals for a bottom cowl:
For these models most: Piper PA-18 Super Cub (4), Taylorcraft F22 (1), Taylorcraft F21 (1), Piper PA-24 Comanche (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Aviation Products Systems INC | Bottom Cowl APS180-536 | Modification Part | Piper PA-18-150 Series, PA-18A-150 Series,... | 2012-05-29 | current |
| Aviation Products Systems INC | Bottom Cowl APS180-5361 | Modification Part | Piper PA-18-150 Series, PA-18A-150 Series,... | 2012-05-29 | current |
| Knots 2U LTD | Bottom Cowl Scoop Assy GF21143 | 21143 | Piper Aircraft, Inc. PA-24 (except not for use on... | 2012-01-08 | current |
| Aviation Products Systems INC | Bottom Cowl APS180-536 | Modification Part | Piper PA-18-15- Series, PA-18A-150 Series,... | 2011-10-30 | current |
| Aviation Products Systems INC | Bottom Cowl APS180-5361 | Modification Part | Piper PA-18-15- Series, PA-18A-150 Series,... | 2011-10-30 | current |
| Taylorcraft Aircraft CORP | Bottom Cowl Assembly 2815-1 | 2815-1 | Taylorcraft F21, F21A, F21B | 1993-12-01 | 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.