The U.S. aircraft register, updated daily
Parts

Keyless Entry

No failure report names the keyless entry. 2 FAA approvals let 2 companies make a replacement keyless entry, United Beechcraft 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 keyless entry and sell it as an approved part for the models named. These are the companies holding such approvals for a keyless entry:

MakerPartReplacesFitsGrantedStatus
Raytheon Aircraft ServicesKeyless Entry Kit 750Modification PartBeech Raytheon) (A361996-03-07current
United Beechcraft INCKeyless Entry System 750Modification PartBeech Raytheon) (A361995-07-13current

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.