The U.S. aircraft register, updated daily
Parts

Heel Plate

No failure report names the heel plate. 6 FAA approvals let 3 companies make a replacement heel plate, Uniglobe Aerospace holding the most (2).

Approved replacement parts 6 parts manufacturer approvals

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

For these models most: Piper PA-19 (2), Piper PA-18 Super Cub (2), Mcdonnell Douglas DC-9 (2).

MakerPartReplacesFitsGrantedStatus
Cub Crafters INCHeel Plate- Front 102640-01Modification PartPiper Aircraft, Inc. PA-18, PA -18S, PA-18 105 (Special)2013-09-23current
Cub Crafters INCHeel Plate- Rear 102641-01Modification PartPiper Aircraft, Inc. PA-18, PA -18S, PA-18 105 (Special)2013-09-23current
Dynamo Aviation INCHeel Plate, F/R Module 454012-005PTC Aerospace Corp 94831-5McDonnell Douglas DC-9-822004-06-07current
Dynamo Aviation INCHeel Plate, Arm 454012-001PTC Aerospace Corp 94831-1McDonnell Douglas DC-9-822004-06-07current
Uniglobe AerospaceHeel Plate 77Z002-00340663003Boeing B737-200 Series2001-06-07current
Uniglobe AerospaceHeel Plate 77Z002-00140663001Boeing B737-200 Series2001-06-07current

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.