A Technical Standard Order (TSO) is a minimum performance standard issued by the

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

Federal Aviation Administration The Federal Aviation Administration (FAA) is a Federal government of the United States, U.S. federal government agency within the United States Department of Transportation, U.S. Department of Transportation that regulates civil aviation in t ...

for specified materials, parts, processes, and appliances used on

civil aircraft Civil may refer to: *Civility, orderly behavior and politeness *Civic virtue, the cultivation of habits important for the success of a society *Civil (journalism) ''The Colorado Sun'' is an online news outlet based in Denver, Colorado. It lau ...

. Articles with TSO design approval are eligible for use on United States

type certified A type certificate signifies the airworthiness of a particular category of aircraft, according to its manufacturing design (''type design''). Certification confirms that the aircraft of a new type intended for serial production is in compliance w ...

products by following a much lighter process than similar non-TSO approved parts, provided the TSO standard meets the aircraft requirements. The TSO authorization (also called TSOA) or a letter of TSO Design Approval does not necessarily convey approval for installation. Similar standards are maintained by other aviation authorities. For example European Technical Standard Orders (ETSO) by

EASA The European Union Aviation Safety Agency (EASA) is an agency of the European Commission with responsibility for civil aviation safety in the European Union. It carries out certification, regulation and standardisation and also performs inve ...

for the

European Union The European Union (EU) is a supranational union, supranational political union, political and economic union of Member state of the European Union, member states that are Geography of the European Union, located primarily in Europe. The u ...

, with limited reciprocal equivalence on a per-country basis. These often have the same numbers as FAA TSOs. For example, the FAA TSO for aviation headsets is C139. In the European Union, it is ETSO-C139.

References

External links

FAA - Technical Standard Orders (Archived)Concorde - Battery TSO Explained
Avionics Aviation licenses and certifications Federal Aviation Administration {{aviation-stub

See also

References

External links