21. It operates under Visual Flight Rules ( VFR ) and Instrument Flight Rules ( IFR ). 22. Private pilot flights using visual flight rules 23. Ninety percent of all general aviation flights are conducted under visual flight rules, according to the advisory. 24. At the time of the incident, the weather satisfied the Visual Flight Rules ( VFR ) conditions. 25. Instrument Flight Rules, Visual Flight Rules, operation as a commercial carrier or private pilot, and so on. 26. Dead reckoning is on the curriculum for VFR ( visual flight rules-or basic level ) pilots worldwide. 27. The pilots did not maintain visual flight rules while flying below lowest safe altitude, thus impacting terrain. 28. The Bonanza pilot did not file a flight plan and was operating on visual flight rules, he said. 29. Type certification for day and night visual flight rules was granted by the FAA on 2 June 2016. 30. The flight departed from ONT at 1556 PST, on a visual flight rules ( VFR ) flight plan.
