What was found
AIRCRAFT PERFORMED AN UNSCHEDULED LANDING, CAPTAIN REPORTED LOSS OF CABIN PRESSURE CONTROL AT 32000 FEET; EMERGENCY DESCENT PROCEDURE WAS PERFORMED AND OXYGEN MASKS WERE ACTIVATED. DURING MAINTENANCE CHECK, RT AUGMENTATION VALVE LINES WERE REPAIRED IAW MM 20-12-01 AND ADJUSTMENT / TEST CABIN PRESSURE CONTROL WAS PERFORMED IAW MM 21-32-00; THE RT COMPRESSOR DISCHARGE THERMAL SWITCH CONNECTOR WAS RECONNECTED AND THE LT COMPRESSOR DISCHARGE THERMAL SWITCH WAS RETIGHTEN IAW MM 21-31-05. NO OVERWEIGHT INSPECTION WAS REQUIRED, THE APPROVED FERRY FLIGHT WAS PERFORMED. DURING OVERNIGHT CHECK, THE CABIN PRESSURE CONTROL NR 1 WAS REPLACED IAW 21-32-03, TESTED CORRECT; THE RT PRESSURE REGULATOR VALVE WAS REPLACED IAW MM