What was found
AIR RETURN DUE TO OVERHEAD MAINT AND NO.2 ENG ANTI-ICE LIGHTS TURN ON DURING CLIMBING. IT IS THE 3RD TIME HIT DURING LAST 10 DAYS. FOUND STATUS MESSAGE "BLEED PI SENSOR R" WITH "36-21011 ENGINE-2 INTERMEDIATE DUCT PRESSURE SENSOR SIGNAL IS OUT OF RANGE" PLEASE FOLLOW FIM 36-21 TASK 802 FOR TROUBLESHOOTING. REF FIM 36-21 TASK 802 REPLACED DUCT PRESSURE SENSOR REF AMM 36-11-05-000-801. REPLACED AIR SYSTEM CONTROLLER REF AMM 21-61-22-000-801. ACCOMPLISHED LRU TEST REF AMM 36-00-00-710-801. TEST PASSED NO DEFECTS NOTED. ACCOMPLISHED IDLE RUN AND OPS CHECK THE ENGINE ANTI-ICE TEST REF AMM 30-21-00-710-801. TEST PASSED.