Seal Id
No failure report names the seal id. 10 FAA approvals let 4 companies make a replacement seal id, Eaton Aerospace holding the most (7).
Approved replacement parts 10 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a seal id and sell it as an approved part for the models named. These are the companies holding such approvals for a seal id:
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Extex Engineered Products INC. | Seal .424 ID x .103 DIA - Round 328419 | 328419 | Pratt & Whitney JT8D-1, JT8D-1A, JT8D-1B | 2024-10-28 | current |
| Eaton Aerospace | E-SEAL? 37.120 ID FACE TYPE SPLIT SEAL, EXTERNAL PRESSURE 14429-PSI | P/N 50L748 | Pratt & Whitney PW4074D | 2014-02-17 | current |
| Eaton Aerospace | E-SEAL? 36.014 ID FACE TYPE SPLIT SEAL, EXTERNAL PRESSURE 14427-PSI | P/N 50L726 | Pratt & Whitney PW4074D | 2014-02-17 | current |
| Eaton Aerospace | E-SEAL? 36.076 ID FACE TYPE SPLIT SEAL, EXTERNAL PRESSURE 14474-PSI | P/N 50L727 | Pratt & Whitney PW4074D | 2014-02-17 | current |
| Woodward INC | Seal-.242 ID 1391-0055 | Woodward Governor Company 1391-0055 | CFMI CFM56-5B1, -5B2, -5B3 | 2011-09-29 | current |
| Eaton Aerospace | E-SEAL 37.120 ID FACE TYPE SPLIT SEAL, EXTERNAL PRESSURE 14429-PSI | Pratt & Whitney 50L748 | Pratt & Whitney PW4074, 4077, 4077D | 2003-08-25 | current |
| Eaton Aerospace | E-SEAL 36.014 ID FACE TYPE SPLIT SEAL, EXTERNAL PRESSURE 14427-PSI | Pratt & Whitney 50L726 | Pratt & Whitney PW4074, 4077, 4077D | 2003-08-25 | current |
| Eaton Aerospace | E-SEAL 36.076 ID FACE TYPE SPLIT SEAL, EXTERNAL PRESSURE 14474-PSI | Pratt & Whitney 50L727 | Pratt & Whitney PW4074, 4077, 4077D | 2003-08-25 | current |
| Eaton Aerospace | E-SEAL 37.120 ID FACE TYPE SPLIT SEAL, EXTERNAL PRESSURE 13044-PSI | Pratt & Whitney 50L747 | Pratt & Whitney PW4074, 4077, 4077D | 2003-08-25 | current |
| Sun Air Parts | Seal-16.625 ID X .125 Dia Round SAP38606 | Pratt & Whitney 38606 | Pratt & Whitney R-985 Wasp Jr. Series AN-1, -3, -4 | 1997-09-17 | 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.