As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
COS - WHILE ACCOMPLISHING THE LANDING GEAR INSPECTION PORTION OF THE C-CHECK, MAINTENANCE NOTICED A SLIGHT AMOUNT OF 'PITTING' ON THE ACTUATOR ROD OF THE LEFT MAIN LANDING GEAR EMERGENCY EXTENSION ACTUATOR. MAINTENANCE REPLACED THE ACTUATOR IAW AMM 32-32-00, AND CONDUCTED AND OPERATIONAL CHECK IAW AMM 32-10-00. SYSTEM FUNCTION WAS NORMAL. (M)