Tension Torsion
No failure report names the tension torsion. 18 FAA approvals let 3 companies make a replacement tension torsion, Airwolf Aerospace LLC (Formerly Airwolf Helicopter) holding the most (12).
Approved replacement parts 18 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a tension torsion and sell it as an approved part for the models named. These are the companies holding such approvals for a tension torsion:
For these models most: Bell 206 JetRanger and LongRanger (4), Messerschmitt-Bolkow-Blohm BK 117 (3), Messerschmitt-Bolkow-Blohm Gmb BO-105 (3), Bell 205 (2), Southwest Florida Aviation SW205 (1), Enstrom F-28 (1), Enstrom Helicopter Corp 480 (1), Enstrom Helicopter Corp 280 (1), Bell AH-1 (1), Bell 212 (1), Bell 204 (1), Arrow Falcon Exporters Inc OH-58 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Airwolf Aerospace LLC (Formerly Airwolf Helicopter) | Tension-Torsion Strap Assy AA-ECD-084-480 | Modification Part | Enstrom Helicopter 480, 480B, TH-28 | 2020-04-16 | current |
| Airwolf Aerospace LLC (Formerly Airwolf Helicopter) | Tension-Torsion Strap Assy AA-ECD-084-280 | Modification Part | Enstrom Helicopter F-28, F-28A, F-28C | 2020-04-16 | current |
| Airwolf Aerospace LLC (Formerly Airwolf Helicopter) | Tension-Torsion Strap Assembly AA-204-310-101-101C | 204-310-101-101 | West Coast Fabrications UH-1E | 2017-11-20 | current |
| Airwolf Aerospace LLC (Formerly Airwolf Helicopter) | Tension-Torsion Strap Assembly AA-204-310-101-101C | 204-310-101-101 | Rotorcraft Development UH-1B, UH-1E, UH-1F | 2017-11-20 | current |
| Airwolf Aerospace LLC (Formerly Airwolf Helicopter) | Tension-Torsion Strap Assembly AA-204-310-101-101C | 204-310-101-101 | California Dept. of Forestry UH-1F) Hagglund Helicopters LLC... | 2017-11-20 | current |
| Airwolf Aerospace LLC (Formerly Airwolf Helicopter) | Tension-Torsion Strap Assembly AA-204-310-101-101C | 204-310-101-101 | ARROW FALCON EXPORTERS INC. UH-1H) AST INC. (UH-1F) Bell... | 2017-11-20 | current |
| Airwolf Aerospace LLC (Formerly Airwolf Helicopter) | Tension-Torsion Strap Assembly AA-204-310-101-103C | 204-310-101-103 | US Helicopters Inc. AH-1S | 2017-11-20 | current |
| Airwolf Aerospace LLC (Formerly Airwolf Helicopter) | Tension-Torsion Strap Assembly AA-204-310-101-103C | 204-310-101-103 | Rotorcraft Development 209/AH-1G | 2017-11-20 | current |
| Airwolf Aerospace LLC (Formerly Airwolf Helicopter) | Tension-Torsion Strap Assembly AA-204-310-101-103C | 204-310-101-103 | Bell Helicopter Textron AH-1, AH-1G, AH-1J | 2017-11-20 | current |
| Lord Corporation | Tension Torsion Strap Assembly LORD204-310-101101 | 204-310-101-101 | Bell Helicopter Textron 204B, 205A, 205A-1 | 2017-09-26 | current |
| Lord Corporation | Tension Torsion Strap Assembly LORD206-310-004101 | 206-310-004-101 | Bell Helicopter Textron 206A, 206B | 2016-04-21 | current |
| Lord Corporation | Tension Torsion Strap Assembly LORD206-310-004103 | 206-310-004-103 | Bell Helicopter Textron 206A, 206B, 206L | 2016-04-21 | current |
| Airwolf Aerospace LLC (Formerly Airwolf Helicopter) | Tension-Torsion Strap Assembly AA206-011-154-105/-107 | 206-011-154-105/-107 | Arrow Falcon Exporters, Inc. OH -58A, OH-58A+, and OH-58C) San... | 2012-11-05 | current |
| Airwolf Aerospace LLC (Formerly Airwolf Helicopter) | Tension-Torsion Strap Assy AA-206-011-154-107 | 206-011-154-107 | Bell Helicopter Textron 206B, 206L, 206L-1 | 2011-01-13 | current |
| Airwolf Aerospace LLC (Formerly Airwolf Helicopter) | Tension-Torsion Strap Assy AA-206-011-154-105 | 206-011-154-105 | Bell Helicopter Textron 206A, 206A-1, 206B | 2011-01-13 | current |
| Lord Corporation, Mechanical Products Division | Tension-Torsion Strap J-17322-1 | Eurocopter J-17322-1 | Eurocopter Deutschland BO105 CBS-4, BK 117 B-1, B-2 | 2003-12-17 | current |
| Lord Corporation | Tension-Torsion Strap J-17322-1 | Eurocopter J-17322-1 | Eurocopter Deutschland BO105 CBS-4, BK 117 B-1, B-2 | 2003-12-17 | current |
| Lord Corporation, Mechanical Products Division | Tension-Torsion Strap J-17322-1 | Eurocopter J17322-1 | Eurocopter Deutschland BO105 CBS-4, BK 117 B-1, B-2 | 2002-03-18 | 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.