Drive Screw
No failure report names the drive screw. 4 FAA approvals let 3 companies make a replacement drive screw, Pma Design & Manufacturing holding the most (2).
Approved replacement parts 4 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a drive screw and sell it as an approved part for the models named. These are the companies holding such approvals for a drive screw:
For these models most: Mcdonnell Douglas MD-11 (1), Dehavilland DHC-6 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Edc | Drive Screw 90C0140E-01 | Norco P/N 90C0140-01 | Boeing MD-11 | 2016-08-17 | current |
| Pma Design & Manufacturing | Drive Screw PDMC6CTM1028-27 | C6CTM1028-27 | Viking Air Limited DHC-6-400 series | 2015-03-06 | current |
| Pma Design & Manufacturing | Drive Screw PDMC6CTM1028-27 | C6CTM1028-27 | DeHavilland Viking Air Ltd) (DHC-6-100, 200, 300 series | 2009-10-18 | current |
| Parker Hannifin CORP, Nichols Airborne Division | Drive Screw 38-18401-0006-1NAD Rev. A... | General Electric P/N 38-18401-0006-1 | General Electric CT7 2A/2D/2D1/5A2/5A3/6... | 1999-07-15 | 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.