The U.S. aircraft register, updated daily
Parts

Tank Shoe

No failure report names the tank shoe. 3 FAA approvals let 1 company make a replacement tank shoe, Balloonacy LTD LLC holding the most (3).

Approved replacement parts 3 parts manufacturer approvals

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

MakerPartReplacesFitsGrantedStatus
Balloonacy LTD LLCTank Shoe Base, RB6 ARP5307853078Aerostar Intl, Inc. All series with RB6 gondola installed2013-07-07current
Balloonacy LTD LLCTank Shoe Base, RB5 ARP5307753077Aerostar Intl, Inc. All series with RB5 gondola installed2013-07-07current
Balloonacy LTD LLCTank Shoe, RWS Only ARP52985-0252985-02Aerostar Intl, Inc Aerostar RWS2013-01-24current

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.