Inboard Leading
No failure report names the inboard leading. 9 FAA approvals let 8 companies make a replacement inboard leading, Curtiss-Wright Flight Sys INC holding the most (2).
Approved replacement parts 9 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a inboard leading and sell it as an approved part for the models named. These are the companies holding such approvals for a inboard leading:
For these models most: Boeing 767 (5), Boeing 747 (4).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Aero Fluid Products | Inboard Leading Edge Slat Alternate Motor 4135T100-3 | S256T011-3 | The Boeing Company 767-200 Series, 767-300 Series,... | 2013-07-23 | current |
| Aerocontrolex Group, Transdigm INC | Inboard Leading Edge Slat Alternate Motor 4135T100-3 | S256T011-3 | The Boeing Company 767-200 Series 767-300 Series... | 2011-06-29 | current |
| Telair International INC | Inboard Leading Edge Flap Actuator 4135T100-3 | S256T011-3 | Boeing 767-200, -300, -300F | 2005-05-08 | current |
| Thomson Saginaw Ball Screw CO | Inboard Leading Edge Ball Screw 894102-01 | Boeing 60B80013-2 | Boeing 747SP Series, 747SR Series, 747-100 Series | 1999-12-16 | current |
| Teleflex Control Systems | Inboard Leading Edge Flap Actuator 4135T100-3 | Boeing S256T011-3 | Boeing 767-200, -300 | 1997-05-01 | current |
| Telair International INC (No Longer Have Pma Production Approval) | Inboard Leading Edge Flap Actuator 4135T100-3 | Boeing S256T011-3 | Boeing 767-200, -300 | 1997-05-01 | current |
| Curtiss-Wright Flight Sys INC | Inboard Leading Edge Flap Actuator Model 178900-6 (Boeing 60B80054-8) | 178900-2 (60B80054-3), -3 (-7), -4 (-5), -5 (-7) | Boeing 747-200, -300, -400 | 1995-03-30 | current |
| Curtiss-Wright Flight Sys INC | Inboard Leading Edge Flap Actuator Model CWFS 178900-6 (Boeing 60B800 54-8) | 178900-2 (60B80054-3) 178900-3 (60B80054-7)... | Boeing 747-200, -300, -400 747-200 | 1992-12-31 | current |
| Precision Kinetics, A Dover Diversified CO | Inboard Leading Edge Ball Screw 894102-01 | Replacement part | Boeing 747 | 1991-06-17 | 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.