Stage Turbine
No failure report names the stage turbine. 12 FAA approvals let 6 companies make a replacement stage turbine, Precision Components Technology holding the most (4).
Approved replacement parts 12 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a stage turbine and sell it as an approved part for the models named. These are the companies holding such approvals for a stage turbine:
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Chromalloy Nevada (Cnv) | Stage 1 Turbine Vane CN340-256-252-0 | 340-256-252-0 | CFM INTERNATIONAL CFM56-7B20E, CFM56-7B22E, CFM56-7B22E/B1 | 2025-10-27 | current |
| Precision Component Technologies | Inner Stage 1 Turbine Vane Seal PCT771403 | 771403 | Pratt & Whitney JT8D-1A, -1B, -7 | 2011-12-08 | current |
| Precision Component Technologies | Outer Stage 1 Turbine Vane Seal PCT771405 | 771405 | Pratt & Whitney JT8D-1A, -1B, -7 | 2011-12-08 | current |
| Precision Components Technology | Stage 3 Turbine Vane Assembly PCT8A3181 | 8A3181 | Pratt & Whitney 2037, 2037(M), 2040 | 2006-04-23 | current |
| Precision Components Technology | Stage 2 Turbine Shroud and Seal Segment PCT6047T95G26 | 6047T95G26 | General Electric CF34-3A1 | 2005-07-29 | current |
| Precision Components Technology | Stage 2 Turbine Duct Segment PCT1B6594 | 1B6594 | Pratt & Whitney 2037, 2037(M), 2040 | 2004-08-15 | current |
| Turbine Kinetics INC, Subsidiary of Heico CORP | Stage 2 Turbine Vane AK768352 | 768352 | Pratt & Whitney JT8D-1, 1A, 1B | 2004-05-18 | current |
| Turbine Kinetics INC, Subsidiary of Heico CORP | Stage 2 Turbine Vane AK783852 | 783852 | Pratt & Whitney JT8D-1, 1A, 1B | 2004-05-18 | current |
| Precision Components Technology | Stage 1 Turbine Duct Segment PCT5005673-01 | 5005673-01 | Pratt & Whitney JT9D-7R4D, -7R4E, -7R4E1 | 2004-02-25 | current |
| Aero Kinetics INC | Stage 2 Turbine Vane AK783852 | Pratt & Whitney 783852 | Pratt & Whitney JT8D-1, 1A, 1B | 1997-10-23 | current |
| Aero Kinetics INC | Stage 2 Turbine Vane AK768352 | Pratt & Whitney 768352 | Pratt & Whitney JT8D-1, 1A, 1B | 1997-10-23 | current |
| Aviation Component Services INC | Stage 1 turbine seal A738085 | P&W 738085 | Pratt & Whitney JT3D-1, -1A, -1MC6 | 1992-01-22 | 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.