# Commission Regulation (EU) No 748/2012 of 3 August 2012 laying down implementing rules for the airworthiness and environmental certification of aircraft and related products, parts and appliances, as well as for the certification of design and production organisations (recast) (Text with EEA relevance), Division 21.A.128: Tests: engines and propellers

Extent: E+W+S+N.I.

Each manufacturer of engines, or propellers manufactured under this Subpart shall subject each engine, or variable pitch propeller, to an acceptable functional test as specified in the type-certificate holder’s documentation, to determine if it operates properly throughout the range of operation for which it is type-certificated, as a means of establishing relevant aspects of compliance with point 21.A.125A(a).

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Source: https://www.legislation.gov.uk/eur/2012/748/annex/I/section/A/division/subpart+f/division/21.a.128 (the official version)
Page: https://openlegislation.uk/eu-regulation-2012-748/annex-I/section-A/division-subpart+f/division-21.a.128
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.