сертифікаційний випробувальний політ
certification test
noise certification test
safe for flight certification
shear test / shearing test
stall test / stalling test
certification program
type certification
re-certification
re-certification of non-compliant aircraft
request for certification
certification
certification basis
certification jobs
certification modification
certification noise level database
certification noise value
certification rules
certification tests
aeroplane type certification
take-off noise certification
aircraft noise certification
airport certification
autoland certification
emission certification method
emissions certification
engine certification scheme
engine emissions certification standards
engine type certification
handling quality certification
international noise certification database
noise certification
noise certification data