What was found
BLEED HPSOV LEFT ENGINE BLEED HIGH PRESSURE SHUTOFF VALVE (HPSOV) FAILED OPEN OR CLOSED, OR LEFT AIR SUPPLY AND CABIN PRESSURE CONTROLLER FAILURE. STATUS MSG01- LATCHED CRUISE MODE DEPENDENT; HIGH PRESSURE SHUTOFF VALVE (LEFT) FAILED CLOSED. DB- AIR SUPPLY & CABIN PRESSURE CONTROLLER (L) MSG-3610220 LATCHD ER MODE. REF DF 226. THIS ITEM WAS A PREVIOUS LOG. THIS ITEM DEFERRED TO PREVENT FURTHER CMC MESSAGE GENERATION. OPBLM MEL REF: 3611J PARTS: 646-9036 MR36086 (VALVE ASSY). P/N 646-9027 MR36211 (CONTROLLER). ACCOMPLISHED FIM 36-11 TASK 801 CKD SENSE LINE & HPSOV CKD OK. REPLACED CONTROLLER PER MM. ACCOMPLISHED ENG. AIR SUPPLY TEST, NO MSG.