The U.S. aircraft register, updated daily
Parts

Icebreaker

No failure report names the icebreaker. 1 FAA approvals let 1 company make a replacement icebreaker, Skytronics Incoporated holding the most (1).

Approved replacement parts 1 parts manufacturer approvals

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

For these models most: Boeing 747 (1).

MakerPartReplacesFitsGrantedStatus
Skytronics IncoporatedIcebreaker 0281700-02073544001Boeing 747-100, 747-100B, 747-100SUD2015-05-17current

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.