The U.S. aircraft register, updated daily
Parts

Starter Gearshaft

No failure report names the starter gearshaft. 2 FAA approvals let 2 companies make a replacement starter gearshaft, Harmony Machine Prod 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 starter gearshaft and sell it as an approved part for the models named. These are the companies holding such approvals for a starter gearshaft:

MakerPartReplacesFitsGrantedStatus
Harmony Machine Prod INCStarter Gearshaft Rebuild HCC-150Modification PartTeledyne Continental O-200-A, -B, -C1993-03-31current
AerotechStarter Gearshaft (Rebuilt) CC-150AModification PartTeledyne Continental O-2001993-02-21current

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.