What was found
DURING CRUISE, NR 4 ENGINE NACELLE TEMP INDICATOR SHOWED 5.9. STARTED FLUCTUATING TO 6.5, EVENTUALLY READING 7.0. ACCOMPLISHED ABNORMAL PROCEDURES IAW 3.26.10. AIRCRAFT DIVERTED. NO FUEL DUMPED. TROUBLESHOOTING FOUND 1 CONNECTOR LOOSE ON LT LOWER DETECTOR AFT (B) LOOP, UPPER FORWARD DETECTOR RT (A) LOOP. 2 EACH GROMMET RIVETS MISSING FROM LT LOWER DETECTOR AT 7 O`CLOCK. 3 HOT AIR LEAKING TRACES FROM 15TH STAGE TO HPT COOLING AIR MANIFOLD CLAMPS AT 5 AND 6 OCLOCK. CLEANED CONNECTORS AND RESECURED AND SECURED LOOP GROMMET TO THE TUBE. RETIGHTENED CLAMPS. FIRE SYSTEM TEST NORMAL. INDICATION NORMAL WITH ENGINE RUN IAW 26-11-00.