He was responsible for several of its administrative and technical reforms , and rose to Chief of Flight Branch in 1969 .
After leaving the Air Force in 1946 as a group captain , Lerew took up a position with the newly formed ICAO in Canada .
Lerew was responsible for several of its administrative and technical reforms , and rose to Chief of Flight Branch in 1969 .
After leaving the Air Force in 1946 as a group captain , Lerew took up a position with the newly formed ICAO in Canada .