Before revision: For example European Technical Standard Order (ETSO) by EASA for the European URL with limited reciprocal equivalence on a per-country URL See also Type certificate Supplemental type certificate References External links FAA page on Technical Standard Orders What is TSO?
After revision: For example European Technical Standard Order (ETSO) by EASA for the European Union, with limited reciprocal equivalence on a per-country URL See also Type certificate Supplemental type certificate References External links FAA page on Technical Standard Orders What is TSO?