Show Air ir Mammoth Mam oth Turns Back on Long Flight MIAMI Fla March 26 UP UP-Mo- UP Mo t tor r trouble forced the Pan Pan-Ameri i can clipper trail blazer of a trans air line lne to turn back today after alter th the ton 19 ship took of off on the first leg lee of a two-day two flight light to San Francisco I- I The clipper cUpper took look of off at a a. a m rn I today after being delayed ed by fog 1 but Chief Chic Pilot Edwin Musick ra ray 1 awed the international airport here 4 a few minutes later that he was turning turn- turn ing around and would land shortly rW- rW which he did The weather was clear I |