F.A.A. OFFERS PLAN TO REDUCE DANGER OF MIDAIR CRASHES
FAA, in reaction to Sept 25 mid-air collision between Pacific Southwest Airlines jetliner and Cessna over San Diego, proposes wide increase in flight areas in which all planes would be under strict radar control from ground; calls proposal most comprehensive set of air space regulations in history; moves to increase to 65 number of major airport areas having maximum control from radar facilities; agency Dir Langhorne Bond comments; Aircraft Owners and Pilots Assn pres John L Baker scores proposals as 'unnecessary' restrictions that will 'hobble' all air transportation; orgn official says campaign will be started to block implementation of new regulations; new proposals described (M)