FeaturesShort FinalShort FinalBy Editorial Staff - Published: May 11, 2009 Updated: April 12, 20190PrintEmailFacebookTwitterLinkedin Overheard in IFR Magazine‘s “On the Air”Perhaps someone should explain to this pilot the subtleties of requesting a pop-up clearance:Skyhawk:“Rochester departure, Skyhawk One Two Three. Request a pop-up clearance to Buffalo. We’re IMC.”Ronald Burkvia e-mail