What was found
(CAN) SUSPECT SLOW HYDRAULIC LEAK IN GREEN SYSTEM AS QUANTITY LEVEL DECREASED EN-ROUTE. AIRCRAFT LANDED AND TAXIED TO THE GATE WITH NO ISSUES. FLIGHT-CREW DID DECLARE A PAN-PAN WITH ATC. FOUND PIN HOLE IN ENGINE NR 1 HYDRAULIC LINE P/N: 238-0658-501 S/N: 1096 RESOLUTION PDU HYD FILTER MANIFOLD TOP PACKING REPLACED PER AMM29-11-49. NO FIX. FOUND PIN HOLE IN #1 ENG HYD PX SW LINE. HYD PX SW LINE AND SWITCH ASSY ROBBED FROM ENG AND INSTALLED ON NR 1 ENG PER AMM 29-11-49. HYD LINE P/N238-0658-501, PX SW P/N 50-1-3200-00 S/N OFF 1096, S/N ON ACA1922 LEAK AND OPERATIONAL CHK SERVICABLE.