The U.S. aircraft register, updated daily
Parts

Pneumatic Control

No failure report names the pneumatic control. 1 FAA approvals let 1 company make a replacement pneumatic control, Triumph Accessory Services 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 pneumatic control and sell it as an approved part for the models named. These are the companies holding such approvals for a pneumatic control:

For these models most: Mcdonnell Douglas MD-10 (1), Mcdonnell Douglas DC-10 (1).

MakerPartReplacesFitsGrantedStatus
Triumph Accessory ServicesPneumatic Control Valve, Sol. Operated 3-Way, 2 Position 2121-12121-1McDonnell Douglas DC-10, -10F, -302002-05-14current

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.