View based on join of AHL_MR_EFFECTIVTIES_B, AHL_POSITION_ALTERNATES_V & MTL_SYSTEM_ITEMS_KFV to get the affected items for all maintenance requirements.
SELECT DISTINCT EF.MR_HEADER_ID , EF.MR_EFFECTIVITY_ID , MTL.INVENTORY_ITEM_ID , MTL.CONCATENATED_SEGMENTS FROM MTL_SYSTEM_ITEMS_KFV MTL , AHL_POSITION_ALTERNATES_V PA , AHL_MR_EFFECTIVITIES_APP_V EF WHERE MTL.INVENTORY_ITEM_ID = PA.INVENTORY_ITEM_ID AND PA.RELATIONSHIP_ID = EF.RELATIONSHIP_ID AND EF.RELATIONSHIP_ID IS NOT NULL AND EF.INVENTORY_ITEM_ID IS NULL UNION SELECT DISTINCT EF.MR_HEADER_ID , EF.MR_EFFECTIVITY_ID , EF.INVENTORY_ITEM_ID , MTL.CONCATENATED_SEGMENTS FROM MTL_SYSTEM_ITEMS_KFV MTL , AHL_MR_EFFECTIVITIES_APP_V EF WHERE MTL.INVENTORY_ITEM_ID = EF.INVENTORY_ITEM_ID AND EF.INVENTORY_ITEM_ID IS NOT NULL