As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
METAL PARTICLES FOUND DURING OIL CHANGE. FURTHER INVESTIGATION FOUND CAMSHAFT LOBES WORN PAST LIMITS AND LIFTER BODIES MISSING SOME METAL. AD 2009-24-52 PREVIOUSLY COMPLIED WITH AND LIFTER 675915 HAD BEEN REPLACED PRIOR TP PRIOR "0" TIME O/H PERFORMED 468.2 HR BEFORE FAILURE NOTED.