As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT MAIN GEAR INDICATED DOWN AFTER GEAR RETRACTION. GEAR DISAGREE & GEAR DOOR EICAS IAW FIM 32-30-00-00-815-839-001. CHECKED PSEU FAULT 259 & 258, SYS.2 SIDE & DRAG BRACE DOWN & 237 & 236, SYS 1 SIDE & DRAG BRACE DOWN. FOUND DISCREPANCIES ON LT MLG OPERATIONS BETWEEN SIDE BRACE & DRAG BRACE, LT MLG SIDE BRACE UNABLE TO OPERATE. FURTHER TROUBLESHOOTING SHOWS LEAKING & BROKEN HYD LINE ON LT MLG SIDE BRACE ACTUATOR. INSTALLED FLEX HYD LINE.