What was found
AFTER REPLACEMENT OF ENGINE DRIVEN HYDRAULIC PUMP VALVE PLATE BOLTS AS IN VICKERS SERVICE BULLETIN 887055-29-01, HYDRAULIC PUMP LEAKAGE OCCURRED. DISCOVERED HOLE IN PUMP FLANGE O-RING RECESS. REPLACED HYDRAULIC PUMP.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AFTER REPLACEMENT OF ENGINE DRIVEN HYDRAULIC PUMP VALVE PLATE BOLTS AS IN VICKERS SERVICE BULLETIN 887055-29-01, HYDRAULIC PUMP LEAKAGE OCCURRED. DISCOVERED HOLE IN PUMP FLANGE O-RING RECESS. REPLACED HYDRAULIC PUMP.