Seal Annulus
No failure report names the seal annulus. 3 FAA approvals let 3 companies make a replacement seal annulus, Turbine Kinetics INC, A Heico Aerospace Company holding the most (1).
Approved replacement parts 3 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a seal annulus and sell it as an approved part for the models named. These are the companies holding such approvals for a seal annulus:
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Turbine Kinetics INC, A Heico Aerospace Company | Seal-Inner Annulus 290-1221-3KT | 290-1221-3 | International Aero Engines V2525-D5, V2528-D5 | 2015-05-14 | current |
| Seal Dynamics INC | Seal-Inner Annulus, Seal Installation, Common Nozzle 290-1221QAS-3 | Goodrich Aerostructures P/N 290-1221-3 | International Aero Engines V2525-D5, V2528-D5 | 2014-12-17 | current |
| Quest Aviation Supply INC | Seal-Inner Annulus, Seal Installation, Common Nozzle 290-1221QAS-3 | 290-1221-3 | International Aero Engines V2525-D5, V2528-D5 | 2013-04-15 | 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.