The U.S. aircraft register, updated daily
Parts

Cargo Racks

No failure report names the cargo racks. 2 FAA approvals let 2 companies make a replacement cargo racks, Soloy LLC 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 cargo racks and sell it as an approved part for the models named. These are the companies holding such approvals for a cargo racks:

For these models most: Hiller UH-12 (2).

MakerPartReplacesFitsGrantedStatus
Jaars INCCargo racks SK041889Modification PartHiller UH12E2011-09-21current
Soloy LLCCargo Racks All parts listed on dwg...Modification PartHiller Aviation UH-12D - limited to models modified...1991-10-23current

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.