What was found
DFW - FLT 870 - CAPTAIN REPORTED THAT AFTER TAKEOFF FROM DFW AND CLIMBING THROUGH 17,000 FT, THE NR 1 ENGINE OIL TEMPERATURE ROSE ABOVE THE RED RADIAL. CREW SHUTDOWN THE NR 1 ENGINE, DECLARED AN EMERGENCY AND RETURNED TO FIELD AT DFW. FLIGHT LANDED WITHOUT FURTHER INCIDENT AND TOWED TO THE GATE BY MAINTENANCE. TOTAL SINGLE ENGINE TIME WAS 16 MINUTES. MAINTENANCE FOUND GROUNDING STUD 16A LOOSE. VERIFIED FLUCTUATIONS AND RISE IN GAUGE. CLEANED AND TIGHTENED STUD AND TERMINAL. RAN ENGINE TO FULL POWER. NO DEFECTS NOTED. OPERATIONAL CHECK GOOD. (M)