Air Transport World

JARs at hand; with liberalization near, Europe has accepted the goal of international harmonization of airworthiness standards. (joint airworthiness requirements)

With liberalization near, Europe has accepted the goal of international harmonization of airworthiness standards

French-designed and constructed aircraft, fitted with engines made and certificated in Italy, with a British registration and certificate of airworthiness, being flown by a Spanish flight crew to a maintenance base in Denmark for the incorporation of a modification made mandatory by the Netherlands ...

Envisioned by a speaker at a recent Royal Aeronautical Society conference here on the implications of European legislation after this year, this is the sort of aviation maze through which the airworthiness authorities of Europe have been trying to chart a way for the past few years in preparation for the lowering of European Community (EC) frontiers next year.

It has been a long, hard slog toward Joint Airworthiness Requirements (JARs) but as the date for full aviation liberalization approaches, the concept of int'l harmonization in air-transport standards is generally accepted--although as the accompanying table shows, some work remains to be done on the detail.

The principle of different countries working to the same aircraft manufacture and overhaul criteria can be traced back to the Chicago Convention of 1944. But only the U.S., with FARs, and the U.K., with BCARs, developed detailed codes of practice. The rest of the world polarized around one or other of these codes, sometimes amending them to suit their own local needs.

The first formal move toward international harmonization came in the early 1960s when Britain and France, and the U.S. were developing supersonic transports. A joint French, British and U.S. committee with the acronym FAUSST was established. The U.S. canceled its SST and withdrew from the committee, but the British and French went ahead with the Concorde and developed standards and requirements jointly.

Emergence of the Airbus consortium in the late 1960s/early 1970s resulted in moves toward JARs between France, Germany and Britain. Initially, these covered large transports, their engines and components.

The scope for JARs was widened gradually and in 1989, operations requirements were included. The European Community Commission (ECC) adopted a regulation last December, incorporating existing JARs into EC law. …

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