What was found
ENGINE 2 ANTI ICE LIGHT ILLUMINATED AT TOD SECOND WRITE UP TOP = TOP OF DESCEND. ONCE FLIGHT CREW STARTED TO RETARD THE LEVER, THE ENG2 ANTI-ICE ILLUMINATED. FOUND MSG 36-21011 ACTIVE, OCCURED DURING DESCENT AND ENG START. PERFORMED GND TEST PER FIM 36-21 TASK 802 TEST PASS. SUGGEST INSPECTING PRSOV VALVE AND/OR CHANGING INTEMEDIATE DUCT PRESS SENSOR. R/R #2 ENG INTERMEDIATE MANIFOLD/DUCT PRESS (PI) SENSOR IAW AMM 36-11-05-000/400-801, TEST PASS, NO LEAKS NOTED, NO ACTIVE MESSAGES . PRSOV STAYED CLOSED WHEN SUPPLYING AIR WITH APU, STAYED OPENED WHEN MANUALLY OPENED WITH OVERRIDE HEX AND CLOSED AUTOMATIC WHEN AIR WAS OFF. RAN #2 ENGINE AT IDLE, NO FAULTS RELATED TO EAI NOTED.