The U.S. aircraft register, updated daily
Parts

Ground Datalink

No failure report names the ground datalink. 1 FAA approvals let 1 company make a replacement ground datalink, Harris Corporation 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 ground datalink and sell it as an approved part for the models named. These are the companies holding such approvals for a ground datalink:

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

MakerPartReplacesFitsGrantedStatus
Harris CorporationGround DataLink Assembly - Generation 1 3065380-101Modification PartBombardier, Inc. CL-600-2B192000-08-10current

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.