The U.S. aircraft register, updated daily
Parts

Upgraded Height

No failure report names the upgraded height. 1 FAA approvals let 1 company make a replacement upgraded height, Raytheon Aircraft Svc 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 upgraded height and sell it as an approved part for the models named. These are the companies holding such approvals for a upgraded height:

MakerPartReplacesFitsGrantedStatus
Raytheon Aircraft SvcUpgraded Height Keeping Equipment that Complies with... MDL RAF02101Modification PartRaytheon Hawker 700A & 700B - with STC...2003-01-13current

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.