Service Controller
No failure report names the service controller. 4 FAA approvals let 3 companies make a replacement service controller, Rockwell Collins INC holding the most (2).
Approved replacement parts 4 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a service controller and sell it as an approved part for the models named. These are the companies holding such approvals for a service controller:
For these models most: Boeing 747 (4).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Rockwell Collins INC | Service Controller 116700-140 | 116700-140 | Boeing 747 | 2016-06-01 | current |
| Rockwell Collins INC | Service Controller 116700-140 | S280U004-400 | Boeing 747-400 | 1999-08-08 | current |
| Packard Hughes Interconnect | Service Controller 1167003-140 | Boeing S220U004-400 | Boeing 747-400 | 1993-11-15 | current |
| Hughes Aircraft, Interconnect Systems Div | Service Controller 1167003-140 | Boeing S220U004-400 | Boeing 747-400 | 1993-04-06 | 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.