Colonoscopy is a test which allows the doctor to look directly at the lining of the large intestine (the colon). Diagnostic colonoscopy is recommended for alterations in bowel habits, occult or frank blood in the stool, unexplained anaemia and as a screening test for colon cancer.
To receive a Private Pilot license, the FAA requires student pilots have a minimum of 40 hours of flight time, of which 20 must be dual (flying with an instructor). However, these are MINIMUMS. No one I know completed their training in 40 hours. I took 66 hours.
The Private Pilots license is the first level to attain before you will be able to pilot an aircraft with passengers but without being paid for it. It is for the most part for the private individual to fly for enjoyment and for the aspiring Commercial Pilot, the chance to build hours.