Manual Bypass
No failure report names the manual bypass. 2 FAA approvals let 2 companies make a replacement manual bypass, Tactair Fluid Controls INC 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 manual bypass and sell it as an approved part for the models named. These are the companies holding such approvals for a manual bypass:
For these models most: Bombardier CL-600 Challenger and CRJ (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Tactair Fluid Controls INC | Manual Bypass Valve and all Bill Of Material Items 400019000-001 | Canadair 601R75159-1 | Bombardier, Inc. CL600-2B19 | 2002-07-25 | current |
| Kaiser Fluid Technologies | Manual Bypass Valve 400019000-001 | Canadair 601R75159-1 | Bombardier, Inc. CL600-2B19 | 1996-03-21 | 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.