What was found
(CAN) NR 1 HYDRAULIC QUANTITY SHOWING 0, SOURCE OF LEAK WAS FROM HYDRAULIC FILTER MANIFOLD COUPLING P/N AE99116H. 1. DAMAGED PACKING REPLACED. 2. CASE DRAIN FILTER REPLACED 3. PRESSURE FILTER REPLACED. 4. RETURN FILTER REPLACED. 5. EDP REPLACCED DUE DRY RUN 6. SIMPLIFIED FLUSHING C/O AND AIRCRAFT RELEASED TO SERVICE WITH 10 HOURS ADD FOR COMPLETE FLUSHING (DUE NON AVAILABILITY OF GHPU AT GROUNDING STATION). 7. COMPLETE FLUSHING OF NR 1 HYDRAULIC SYSTEM IS PLANNED.