The U.S. aircraft register, updated daily
Parts

Grove Disk

No failure report names the grove disk. 1 FAA approvals let 1 company make a replacement grove disk, Grove Aircraft Landing Gear Systems 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 grove disk and sell it as an approved part for the models named. These are the companies holding such approvals for a grove disk:

For these models most: Piper PA-20 Pacer (1), Piper PA-18 Super Cub (1), Piper PA-17 Vagabond (1), Piper PA-16 Clipper (1), Piper PA-15 (1), Piper PA-14 (1), Piper PA-12 Super Cruiser (1), Piper PA-11 Cub Special (1), Piper J5 Cub Cruiser (1), Piper J4 Cub Coupe (1), Piper J-3 Cub (1).

MakerPartReplacesFitsGrantedStatus
Grove Aircraft Landing Gear SystemsGrove Disk Brake System 76002Modification PartPiper J3C (all models including Army and...2007-10-15current

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.