The U.S. aircraft register, updated daily
Parts

Igniter Plugs

No failure report names the igniter plugs. 2 FAA approvals let 1 company make a replacement igniter plugs, Unison Industries holding the most (2).

Approved replacement parts 2 parts manufacturer approvals

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

For these models most: Cameron Balloons Us A-250 (2).

MakerPartReplacesFitsGrantedStatus
Unison IndustriesIgniter Plugs 9058540-1Modification PartAllison Engine A250-C28, C28B, C28C1993-05-06current
Unison IndustriesIgniter Plugs 9044400-1Modification PartAllison Engine A250-C10, -C18, -B151992-12-23current

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.