The U.S. aircraft register, updated daily
Parts

Second Rockwell

No failure report names the second rockwell. 1 FAA approvals let 1 company make a replacement second rockwell, Chippewa Aerospace INC holding the most (1).

Approved replacement parts 1 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a second rockwell and sell it as an approved part for the models named. These are the companies holding such approvals for a second rockwell:

For these models most: Bombardier CL-600 Challenger and CRJ (1).

MakerPartReplacesFitsGrantedStatus
Chippewa Aerospace INCSecond (No.2) Rockwell Collins Flight Management System... 601-3461-01-0001Modification PartBombardier CL600-2B19, CL600-2C10, CL600-2D24...2017-06-07current

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.