The U.S. aircraft register, updated daily
Parts

Screw Distributor

No failure report names the screw distributor. 4 FAA approvals let 1 company make a replacement screw distributor, Hartzell Engine Technologies LLC holding the most (4).

Approved replacement parts 4 parts manufacturer approvals

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

MakerPartReplacesFitsGrantedStatus
Hartzell Engine Technologies LLCScrew Distributor Block AM-3021M3021Continental... A-50-1, A-50-4, A-50-52024-05-20current
Hartzell Engine Technologies LLCScrew Distributor Block AM-3021M3021Lycoming Division... O-290-D, O-290-D2, O-290-D2A2024-05-20current
Hartzell Engine Technologies LLCScrew Distributor Block AM-3021M3021Continental Motors Inc A-40, A-40-2, A-40-32024-05-20current
Hartzell Engine Technologies LLCScrew Distributor Block AM-3021M3021Lycoming Engines O-235-C1, O-235-C1A, O-235-C1B2024-05-20current

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.