Ca Computer
No failure report names the ca computer. 2 FAA approvals let 1 company make a replacement ca computer, Butler Avionics INC. holding the most (2).
Approved replacement parts 2 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a ca computer and sell it as an approved part for the models named. These are the companies holding such approvals for a ca computer:
For these models most: Learjet 31 (2), Learjet 55 (1), Learjet 35 (1), Learjet 25 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Butler Avionics INC. | CA-400 Computer Amplifier Nose Wheel Steering Servo Actuator 501-1211-( ) | 501-1211-( ) | Learjet 25, 28, 29 | 2026-07-10 | current |
| Butler Avionics INC. | CA-530 Computer Amplifier 501-1553-( ) | 501-1553-( ) | Learjet 31 | 2026-07-10 | 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.