What was found
APU AUTO SHUTDOWN IN FLIGHT, CREW RESTARTED INFLIGHT, STRONG FUEL SMELL IN CABIN AFTER APU BLEED AIR SELECTED ON TO FEED PACKS, FUEL ON TAIL OF AIRCRAFT ON GROUND. MAINTENANCE INSPECTED APU WITH APU RUNNING, NO FUEL LEAKS, CHECKED APU OIL LEVEL OK. OPERATED PACKS NO SMELL NOTED. (M)