As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING REMOVAL OF THE LH MLG ACTUATOR FOUND THE LH MAIN LANDING GEAR TRUNNION ASSEMBLY PN 6641501-7, CORRODED AT THE MAIN LANDING GEAR SIDEBRACE ATTACH PIN PN 6641623-1. THE NAS6304-36D BOLT SECURING THE SIDEBRACE ATTACH PIN WAS SEIZED AND UNABLE TO REMOVE. THE LH MAIN LANDING GEAR DOOR ATTACH FITTING PN 6641625-3 AND ADJACENT SURFACE OF THE TRUNNION COMMON TO THE SIDEBRACE ATTACH PIN WAS CORRODED.