The U.S. aircraft register, updated daily
Parts

Reservoir Spherical

No failure report names the reservoir spherical. 1 FAA approvals let 1 company make a replacement reservoir spherical, Tavco INC 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 reservoir spherical and sell it as an approved part for the models named. These are the companies holding such approvals for a reservoir spherical:

For these models most: Learjet 35 (1), Learjet 31 (1), Learjet 25 (1), Learjet 24 (1).

MakerPartReplacesFitsGrantedStatus
Tavco INCReservoir Spherical Assembly 23700146Learjet 6600194-6Learjet 24D, 24E, 24F1996-11-14current

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.