As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHILE PERFORMING MAINTENANCE USING GROUND HYDRAULIC CART, FOUND THAT THE HYDRAULIC GROUND CART DRIVES THE NR 2 SPU SUSPECT INTERNAL CHECK VALVE U/S IN THE NR 2 HYDRAULIC PRESSURE MANIFOLD. REPLACED NR 2 HYDRAULIC PRESSURE MANIFOLD ASSEMBLY.