What was found
CLIMBING THROUGH 14000 MASTER CAUTION AND RT PACK LIGHT ILLUMINATED. QRH PROCEDURES FOLLOWED RESET ATTEMPTED BUT NOT SUCCESSFUL. DIVERTED FOR LANDING. ACFT GROUNDED. R & R RT PACK TEMP SENSOR IAW MM 21-51-52-400-801. ACCOMPLISHED PACK ZONE TEMP CONTROLLER BITE IAW MM 21-61-00-700-806-002. OPS CHECKED GOOD. WHILE OPERATING PACK NOTED LARGE AIR LEAK ABOVE HEAT EXCHANGERS. FOUND SENSE LINE JUST AFT OF THE PACK VALVE DISCONNECTED. SENSE LINE GOES FROM JUST AFT OF PACK AND SUPPLIES AIR TO THE TURBINE MUFF AT THE COLD AIR INLET. TIGHTENED LINE, LEAK CHECKED GOOD IAW MM 20-50-11, ACCOMPLISHED 800-21EA-13639, RT PACK TRIP TROUBLESHOOTING.