The U.S. aircraft register, updated daily
Parts

Heater Tank

No failure report names the heater tank. 2 FAA approvals let 2 companies make a replacement heater tank, B/E Aerospace INC, Lenexa Facility holding the most (1).

Approved replacement parts 2 parts manufacturer approvals

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

For these models most: Boeing 707 (1).

MakerPartReplacesFitsGrantedStatus
B/E Aerospace INC, Lenexa FacilityHeater Tank PMA57845784Boeing B707-320, B7272002-07-31current
Aircraft Products COHeater Tank 57845784Boeing 707-3201996-01-21current

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.