Double
No failure report names the double. 9 FAA approvals let 4 companies make a replacement double, Airline Interiors INC holding the most (6).
Approved replacement parts 9 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a double and sell it as an approved part for the models named. These are the companies holding such approvals for a double:
For these models most: Boeing 727 (6), Sikorsky S-61 (1), Piper PA-32 Cherokee Six, Lance and Saratoga (1), Bell 205 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Turboplus Aircraft Systems INC | Double Assy. 18000-3 | Modification Parts | Piper Aircraft, Inc. PA32RT-300T, (Turbo Lance II), PA-32R-301T | 2018-11-13 | current |
| Rotair Industries INC | DOUBLE R6125-55005-10 | S6125-55005-10 | Sikorsky S-61A (T.C. H2EA0 S-61N/NM (T.C. 1H15) | 1995-07-31 | current |
| Airline Interiors INC | Double Assembly, L/H All Parts noted on Dwg No. 110177 | Modification Part | Boeing 727-200 Series | 1995-01-18 | current |
| Airline Interiors INC | Double Assembly, R/H Dwg 110169 | Modification Part | Boeing 727-200 Series | 1995-01-18 | current |
| Airline Interiors INC | Double Assembly, L/H All Parts noted on Dwg No. 110187 | Modification Part | Boeing 727-200 Series | 1995-01-05 | current |
| Airline Interiors INC | Double Assembly, R/H All Parts noted on Dwg No. 110187 | Modification Part | Boeing 727-200 Series | 1995-01-05 | current |
| Airline Interiors INC | Double Assembly, R/H Dwg No. 110186 | Modification Part | Boeing 727-200 Series | 1995-01-05 | current |
| Airline Interiors INC | Double Assembly, R/H Dwg No. 110171 | Modification Part | Boeing 727-200 Series | 1994-12-27 | current |
| Triumph Fabrications - Hot Springs INC (Previously Chem-Fab CORP) | Double, Skid Tube AB205-050-401-1 | 205-050-401-1 | Bell 205A-1 & 212 | 1991-07-29 | 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.