доопрацювання для задоволення вимог до сертифікації
equipment modification
equipment modification list
retrofit modification kit
modification program
approved modification of aircraft
authorized modification
helicopter modification
modification
orbit modification
modification table of distribution and allowance
certification program
type certification
re-certification
re-certification of non-compliant aircraft
request for certification
certification
certification basis
certification jobs
certification noise level database
certification noise value
certification rules
certification test
certification test flight
certification tests
aeroplane type certification
take-off noise certification
aircraft noise certification
airport certification
autoland certification
emission certification method
emissions certification
engine certification scheme