Audit Unit
No failure report names the audit unit. 3 FAA approvals let 2 companies make a replacement audit unit, Sony Trans Com INC holding the most (2).
Approved replacement parts 3 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a audit unit and sell it as an approved part for the models named. These are the companies holding such approvals for a audit unit:
For these models most: Boeing 767 (3).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Rockwell Collins INC | Audit Unit 980-0800-071 | 980-0800-071 | Boeing 767-300 Series | 2016-06-01 | current |
| Sony Trans Com INC | Audit Unit 980-0800-071 | 980-0800-071 | Boeing 767-300 Series | 1999-11-02 | current |
| Sony Trans Com INC | Audit Unit 980-0800-71 | 980-0800-71 | Boeing 767-300 Series | 1999-11-02 | 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.