Stage
No failure report names the stage. 12 FAA approvals let 3 companies make a replacement stage, Pas Technologies INC holding the most (10).
Approved replacement parts 12 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a stage and sell it as an approved part for the models named. These are the companies holding such approvals for a stage:
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Pas Technologies INC | Stage 2 - Turbine Outer Air Seal Ring PX798160 | Pratt & WhitneyP/N 798160 | Pratt & Whitney JT8D-209, -217, -217A | 2006-06-30 | current |
| Pas Technologies INC | Stage 3 - Turbine Air Seal Ring, Inner Assembly PX777738-001 | Pratt & WhitneyP/N 777738-001 | Pratt & Whitney JT8D-209, -217, -217A | 2006-06-30 | current |
| Pas Technologies INC | Stage 3 - Turbine Outer Air Seal Ring PX798162 | Pratt & WhitneyP/N 798162 | Pratt & Whitney JT8D-209, -217, -217A | 2006-06-30 | current |
| Pas Technologies INC | Stage 4 - Turbine Outer Air Seal Ring PX798164 | Pratt & WhitneyP/N 798164 | Pratt & Whitney JT8D-209, -217, -217A | 2006-06-30 | current |
| Pas Technologies INC | Stage 4 - Turbine Air Seal Ring, Inner Assembly PX777739-001 | Pratt & WhitneyP/N 777739-001 | Pratt & Whitney JT8D-209, -217, -217A | 2006-06-30 | current |
| Pas Technologies INC | Stage 1 - Turbine Air Seal Ring Assembly PX806587 | Pratt & WhitneyP/N 806587 | Pratt & Whitney JT8D-217, -217A. | 2006-06-30 | current |
| Pas Technologies INC | Stage 3 - Turbine Air Seal Ring, Inner Assembly PX777738 | Pratt & WhitneyP/N 777738 | Pratt & Whitney JT8D-209, -217, -217A | 2006-06-30 | current |
| Pas Technologies INC | Stage 4 - Turbine Air Seal Ring, Inner Assembly PX777739 | Pratt & WhitneyP/N 777739 | Pratt & Whitney JT8D-209, -217, -217A | 2006-06-30 | current |
| Pas Technologies INC | Stage 1 - Turbine Air Seal Ring Assembly PX806586 | Pratt & WhitneyP/N 806586 | Pratt & Whitney JT8D-15A, -17A, -17AR | 2006-06-30 | current |
| Pas Technologies INC | Stage 1 - Turbine Air Seal Ring Assembly PX786439 | Pratt & WhitneyP/N 786439 | Pratt & Whitney JT8D-1, -1A, -1B | 2006-06-30 | current |
| Praxair Surface Tech INC | Stage 4 - Turbine Air Seal PX777467 | Pratt & Whitney 777467 | Pratt & Whitney JT8D-209, -217, -217A | 2002-04-21 | current |
| Chromalloy Gas Turbine CORP - Dallas | Stage 7 - Vane JT8 CD575157 | Pratt & Whitney 438257, 503157, 575157 | Pratt & Whitney JT8D-1, 1A, 1B | 1999-08-24 | 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.