As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CUSTOMER COMPLAINED OF HARD TO STEER AIRCRAFT AND NLG FAILING TO TURN WHEN O.A.T. WAS VERY LOW. ON TEAR DOWN, INSPECTORS FOUND MASSIVE CORROSION IN NLG BRACE ASSY. BRACE HAD TO BE REPLACED WITH NEW PART. CAUSE OF FAILURE FELT TO BE LACK OF PROPER LUBBING PER MM LUBE CHART AT EVERY INSPECTION. REFER TO ATA 12 FOR PROPER GREASE TYPE AND LUBE INTERVALS.