The U.S. aircraft register, updated daily
Parts

Spring Throttle

No failure report names the spring throttle. 2 FAA approvals let 2 companies make a replacement spring throttle, Goode Engineering CORP 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 spring throttle and sell it as an approved part for the models named. These are the companies holding such approvals for a spring throttle:

MakerPartReplacesFitsGrantedStatus
Avstar Fuel Systems INCSpring Throttle Opening AV24-A33AVStar Aircraft Accessories P/N AV24-A33Lycoming Replacement Part where AVStar...2008-08-21current
Goode Engineering CORPSpring Throttle Opening T24-A33Facet Aerospace Marvel-Schebler (FACET) 24-A33Franklin Engine Co. Replacement Part where Facet P/N 24-...1998-04-20current

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.