Gearshaft Helical
No failure report names the gearshaft helical. 8 FAA approvals let 3 companies make a replacement gearshaft helical, Extex Engineered Products INC holding the most (5).
Approved replacement parts 8 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a gearshaft helical and sell it as an approved part for the models named. These are the companies holding such approvals for a gearshaft helical:
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Extex Engineered Products INC | Gearshaft Assembly Helical Power Take-Off E23068295 | E23068295 | Rolls-Royce 250-C28B, C28C, C30 | 2016-09-07 | current |
| Extex Engineered Products INC | Gearshaft Assembly Helical PTO Supplement 135 6899402TA | 6899402 | Rolls-Royce 250-B15G, B17, B17B | 2016-09-07 | current |
| Extex Engineered Products INC | Gearshaft Assembly Helical-PTO 23084249TA | 23084249 | Rolls-Royce 250- C30, C30G, C30G/2 | 2016-09-07 | current |
| Extex Engineered Products INC | Gearshaft Assembly Helical PTO 6899402AL | 6899402 | Rolls-Royce 250-B15G, B17, B17B | 2016-09-07 | current |
| Extex Engineered Products INC | Gearshaft Assembly Helical-Torquemeter 23035299AL | 23035299 | Rolls-Royce 250-B17C, B17D, B17E | 2016-09-07 | current |
| Timken Alcor Aerospace Technologies INC | Gearshaft Assembly Helical PTO 6899402AL | Allison 6899402 | Allison Engine 250-B15G, -B17, -B17B | 2003-01-13 | current |
| Air Technology Engines INC | Gearshaft Helical-Output A1-030-191-11 | Lycoming 1-030-191-11 | Textron Lycoming T5313B, T5317A, T5317A-1 | 1999-03-14 | current |
| Air Technology Engines INC | Gearshaft Helical Planet A1-030-193-01 | Lycoming 1-030-193-01 | Textron Lycoming T5313B, T5317A, T5317A-1 | 1999-03-14 | 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.