The U.S. aircraft register, updated daily
Parts

Air Switch

No failure report names the air switch. 10 FAA approvals let 2 companies make a replacement air switch, Meggitt Addison INC (Formerly Keith Products LP) holding the most (6).

Approved replacement parts 10 parts manufacturer approvals

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

For these models most: Airbus Helicopters EC-135 now H135 (5), Airbus Helicopters MBB-BK 117 C-2 (4).

MakerPartReplacesFitsGrantedStatus
Air Comm CorporationAir Switch Assembly 135-0350-4135-0350-4Airbus Helicopters... EC1352026-08-31current
Air Comm CorporationAir Switch Assembly B212M20C1009B212M20C1009Airbus Helicopters... MBB-BK, 117 C22026-08-31current
Air Comm CorporationAir Switch Assembly B212M20C1009B212M20C1009Airbus Helicopters... MBB-BK117 C22025-02-10current
Air Comm CorporationAir Switch Assembly 135-0350-4135-0350-4Airbus Helicopters... EC1352025-02-10current
Meggitt Addison INC (Formerly Keith Products LP)Air Switch Assy B212M20C1009B212M20C1009Eurocopter Deutschland MBB-BK 117 C-22008-02-21current
Meggitt Addison INC (Formerly Keith Products LP)Air Switch Assy. 135-0350-4135-0350-4Eurocopter Deutschland EC1352006-06-19current
Meggitt Addison INC (Formerly Keith Products LP)Air Switch Assy B212M20C1009B212M20C1009Eurocopter Deutschland MBB-BK117C-22006-06-19current
Meggitt Addison INC (Formerly Keith Products LP)Air Switch Assy B212M20C1009B212M20C1009Eurocopter Deutschland MBB-BK117C-22005-07-12current
Meggitt Addison INC (Formerly Keith Products LP)Air Switch Assy 135-0350-4135-0350-4Eurocopter Deutschland EC1352005-07-12current
Meggitt Addison INC (Formerly Keith Products LP)Air Switch 135-0350-4135-0350-4Eurocopter Deutschland EC1352002-01-09current

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.