As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONTINUOUS NOSE GEAR VIBRATIONS UPON LANDING. TEARDOWN AND INSP OF NOSE GEAR AXLE BARREL ASSY REVEALED THE NOSE AXLE TO BE WORN BEYOND LIMITATIONS. TWO .005 INCH GROOVES WORN INTO AXLE. ONE ON EACH SIDE WHERE THE AXLE BARREL COVER PLATE SEALS ARE LOCATED. NO WEAR IS PERMITTED IAW THE OVERHAUL MANUAL. (K)