Machine Screw
No failure report names the machine screw. 10 FAA approvals let 7 companies make a replacement machine screw, Hartzell Engine Technologies LLC holding the most (2).
Approved replacement parts 10 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a machine screw and sell it as an approved part for the models named. These are the companies holding such approvals for a machine screw:
For these models most: Northrop C-125 (3), Boeing 737 (2), Douglas DC-8 (1), Boeing 727 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Able Engineering and Component Services, INC. | Machine Screw ST1779-11AA | ST1779-11 | Pratt & Whitney PW2037, PW2037M, PW2037D | 2017-02-01 | current active |
| Able Engineering and Component Services, INC. | Machine Screw ST1779-09AA | ST1779-09 | Pratt & Whitney PW2037, PW2037M, PW2037D | 2017-02-01 | current active |
| Able Aerospace Services, INC. | Machine Screw ST1779-09AA | ST1779-09 | PRATT & WHITNEY PW2037, PW2037M, PW2037D | 2017-02-01 | current active |
| Able Aerospace Services, INC. | Machine Screw ST1779-11AA | ST1779-11 | PRATT & WHITNEY PW2037, PW2037M, PW2037D | 2017-02-01 | current active |
| Hartzell Engine Technologies LLC | Machine Screw ES10-35936 | Bendix 10-35936 | Teledyne Continental Series A-50, A-65, A-75 | 2013-02-24 | current |
| Kelly Aerospace Energy Systems LLC | Machine Screw ES10-35936 | Bendix 10-35936 (If used for Bendix P/N... | Teledyne Continental Series A-50, A-65, A-75 | 2012-11-29 | current |
| Hartzell Engine Technologies LLC | Machine Screw ES10-35936 | Bendix 10-35936 | Teledyne Continental Series A-50, A-65, A-75 | 2010-10-21 | current |
| Wencor LLC | Machine Screw 355888WE | 355888 | Boeing 727 series, 727C series, 727-100 series | 2010-02-02 | current |
| Aviation Component Solutions | Machine Screw P00483 | Whittaker Controls P/N 322651 installed in... | The Boeing Company 737-300 series, 737-400 series,... | 2004-08-11 | current |
| Aero Accessories INC | Machine screw 82-00070 | Airborne machine screw | Teledyne Continental Any engine where Airborne 212CW-6... | 2003-07-07 | 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.