The U.S. aircraft register, updated daily
Parts

Hsu Rx

No failure report names the hsu rx. 2 FAA approvals let 2 companies make a replacement hsu rx, Wulfsberg Electronics Division 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 hsu rx and sell it as an approved part for the models named. These are the companies holding such approvals for a hsu rx:

MakerPartReplacesFitsGrantedStatus
Wulfsberg Electronics DivisionHSU RX Power Splitter 405038A-003405038A-003Gulfstream Aerospace LP Israel Aircraft Industries, LTD)...2019-06-26current
Thrane & Thrane INCHSU RX Power Splitter 405038A-003Modification PartGulfstream 200 (Galaxy)2005-03-13current

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.