Seal Turbine
No failure report names the seal turbine. 11 FAA approvals let 5 companies make a replacement seal turbine, Wencor LLC holding the most (3).
Approved replacement parts 11 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a seal turbine and sell it as an approved part for the models named. These are the companies holding such approvals for a seal turbine:
For these models most: Boeing 747 (2), Airbus A321 (2), Airbus A320 (2), Airbus A319 (2), Boeing 737 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Wencor LLC | Seal-Turbine 3844588-1WE | 3844588-1 | BOEING 737-900ER Series, 737-8, 737-9 | 2020-10-29 | current |
| Wencor LLC | Seal-Turbine 3844588-1WE | 3844588-1 | Airbus A318 Model -111, A318 Model -112,... | 2020-10-29 | current |
| Wg Technical LLC | Seal-Turbine Wheel 3500108-5WE | Honeywell 3500108-5 | General Electric Company CF6-80E1A1, CF6-80E1A2, CF6-80E1A3 | 2016-03-27 | current |
| Wencor LLC | Seal-Turbine 3844588-1WE | 3844588-1 | Airbus A319 Series, A319 Model -111, A319 Model -112 | 2014-01-30 | current |
| Flexco INC, Little Rock | Seal Turbine Exhaust 5225-5M | The Boeing Company 60B80047-2 | Boeing 747-400 | 1994-04-24 | current |
| Flexco INC, Little Rock | Seal Turbine Exhaust 5225-4 | The Boeing Company 60B80047-4 | Boeing 747-400 | 1994-04-24 | current |
| Mcclain International INC | Seal turbine, 3rd stage, outer M2533 | P&W 811962 | Pratt & Whitney JT8D-1, -1A, -1B | 1993-12-15 | current |
| Electro-Methods INC | Seal-Turbine Inner First Stage (Deleted)Electro-Methods... | - | Miscellaneous - | 1975-03-30 | current |
| Electro-Methods INC | Seal-Turbine Inner First Stage Electro-Methods Part No.... | - | Miscellaneous - | 1975-03-30 | current |
| Mcclain International INC | Seal Turbine Outer Second Stage M2423 | P&W 626976 | Pratt & Whitney JT8D-1, -7, -9 | 1973-03-06 | current |
| Mcclain International INC | Seal Turbine Outer Second Stage M2422 | P&W 626975 | Pratt & Whitney JT8D-1, -7, -9 | 1973-03-06 | 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.