Sound Management
No failure report names the sound management. 1 FAA approvals let 1 company make a replacement sound management, Elliott Aviation Products Development INC holding the most (1).
Approved replacement parts 1 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a sound management and sell it as an approved part for the models named. These are the companies holding such approvals for a sound management:
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Elliott Aviation Products Development INC | Sound Management System Parts listed on Master Dwg... | Modification Part | Twin Commander 690, 690A, 690B | 1997-01-02 | 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.