As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE AFTER TAKE OFF, MAIN GEAR LIGHTS WENT GREEN MOMENTARILY, THEN STARTED FLICKERING BETWEEN RED AND AMBER, NLG DIDN'T GO GREEN AT ALL AND FLUCTUATED BETWEEN RED AND AMBER. RETURNED TO FIELD. PERFORMED AN OPS CHECK OF THE LANDING GEAR SYSTEM IAW AMM. SWUNG GEAR MULTIPLE TIMES. OPS CHECKED GOOD. SERVICE NLG STRUT IAW AMM. NO LEAKS NOTED.