The U.S. aircraft register, updated daily
Parts

Vmo Switching

No failure report names the vmo switching. 3 FAA approvals let 1 company make a replacement vmo switching, Avcon Industries INC holding the most (3).

Approved replacement parts 3 parts manufacturer approvals

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

For these models most: Learjet 35 (3).

MakerPartReplacesFitsGrantedStatus
Avcon Industries INCVMO Switching Placards Installation 1071, 1072Modification PartLearjet 35, 35A, 362010-02-03current
Avcon Industries INCVMO Switching Placards Installation 1071, 1072Modification PartLearjet 35, 35A, 362008-09-22current
Avcon Industries INCVMO Switching Placards Installation 1071, 1072Modification PartLearjet 35, 35A, 362007-07-02current

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.