The U.S. aircraft register, updated daily
Parts

Pressure Boot

No failure report names the pressure boot. 2 FAA approvals let 1 company make a replacement pressure boot, Meggitt Oregon holding the most (2).

Approved replacement parts 2 parts manufacturer approvals

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

For these models most: Boeing 777 (2).

MakerPartReplacesFitsGrantedStatus
Meggitt OregonPressure Boot Seal 93C10353-13S212W301-13Boeing 777-200 Series, 777-200LR Series,...2016-08-09current
Meggitt OregonPressure Boot Seal 93C10353-19S212W301-19Boeing 777-200 Series, 777-200LR Series,...2016-08-09current

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.