Zntu
No failure report names the zntu. 2 FAA approvals let 2 companies make a replacement zntu, Litton Network Access Systems 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 zntu and sell it as an approved part for the models named. These are the companies holding such approvals for a zntu:
For these models most: Boeing 777 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Litton Network Access Systems | ZNTU 104802 | Boeing 213-1-50048 | Boeing 777-200 | 1998-10-21 | current |
| Litton Fibercom | ZNTU 104802 | Boeing 213-1-50048 | Boeing 777-200 | 1995-10-16 | 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.