сертифікаційне випробування на шум
certification noise level database
certification noise value
take-off noise certification
aircraft noise certification
international noise certification database
noise certification
noise certification data
noise certification database
noise certification documentation
noise certification reference procedure
noise certification scheme
noise certification standard
noise re-certification
certification test
certification test flight
flyover noise test
noise protection for engine test area
noise test
test noise
test noise measurement point
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 rules