Active Tuned
No failure report names the active tuned. 2 FAA approvals let 2 companies make a replacement active tuned, Hutchinson Aerospace & Industry INC holding the most (1).
Approved replacement parts 2 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a active tuned and sell it as an approved part for the models named. These are the companies holding such approvals for a active tuned:
For these models most: Mcdonnell Douglas DC-9 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Barry Controls Aerospace | Active Tuned Mass Absorber 96047-1 | Santa Barbara Aerospace 96047-1 | McDonnell Douglas DC-9-81, -82, -83 | 1997-10-13 | current |
| Hutchinson Aerospace & Industry INC | Active Tuned Mass Absorber All parts noted on MDL96044-1 | Modification Part | McDonnell Douglas DC-9-11, -12, -13 | 1997-04-15 | 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.