As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE AFTER T/O FOR ABOUT 3 SECONDS ALL GEAR SHOWED UP. AIRCRAFT WAS IN TURN AT TIME OF RETRACTION. REMOVED AND REPLACED NLG DOWNLOCK PROXIMITY SENSOR IAW AMM. PERFORMED LANDING GEAR EXTENSION AND RETRACTION TEST IAW AMM. ALL CHECKS GOOD.