What was found
ANTI ICE ENG R EICAS DISPLAYED WITH EAI PRSOV R STATUS ACCOMPLISHED FIM TASK DMC-B787-A-30-20-F1-05A-421A-A THRU STEP 1B(2)(D)3. FOUND ENGINE ANTI ICE VALVE FILTER COLLAPSED. SEE PIC. REMOVED AND REPLACED FILTER REF AMM 30-21-08. FOUND AIR SUPPLY LINE AT ANTI ICE CONTROLLER LOOSE, RESECURED LINE REF AMM ADD EMP:U244608 30-21-08. REQUIRES GROUND TEST : 30 ENGINE ICE PROTECTION SYSTEM, SYSTEM TEST (ENGINES RUNNING). AFTER CMCF GROUND TEST 30 ENG ICE PROTECTION, SYSTEM TEST, RIGHT ENG ANTI ICE (ENG RUNNING), TEST FAILED WITH MAINT MESSAGE 30-10022 LATCHED. REF AMM DMC-B787-A-30-21-00-20E-300B-A. REMOVED AND REPLACED RH ENGINE ANTI-ICE PRSOV AND OPS CHECK GOOF REF AMM 30-21-08.