What was found
LOSS OF A SYSTEM HYDRAULICS. RECTIFICATION INVESTIGATION FOUND THE NUMBER 2 ENGINE THRUST REVERSER HYDRAULIC RETURN LINE HAD FAILED CAUSING THE LOSS OF A SYSTEM FLUID, PART NUMBER B432E0562C. UPON DELIBERATION WITH FLIGHT OPERATIONS, IT WAS DECIDED TO DISPATCH THE AIRCRAFT UNDER A FERRY PERMIT AUTHORITY, WHICH INCLUDED ISOLATING THE NUMBER 2 THRUST REVERSER IN ACCORDANCE WITH MEL 78-01-01. REPLENISHING THE HYDRAULIC FLUID AND CHECKING FOR ADDITIONAL LEAKS. UPON ARRIVAL INTO YEG, THE REFERENCED HYDRAULIC LINE WAS REPLACED.