As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF LANDING GEAR FAILED TO RETRACT MOMENTARILY. PROX SYS 1 FAULT MSG FOLLOWED BY GEAR DISAGREE. MAIN SHOWED AMBER DASHES, NOSE SHOWED RED DASHES. PERFORMED EMER PROCEDURE. GEAR RETURNED TO DOWN & LOCKED POSITION. R & R THE LG SELECTOR VLV IAW AMM 32-32-10. PERFORMED OPERATIONS TEST OF LG EXTENSION & RETRACTION SYS IAW AMM 33-30-00. OPERATIONS CHECKED GOOD. EMERGENCY LANDING.