As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF AND SELECTING GEAR LEVER UP GEAR DISAGREE AND NOSE DOOR OPEN WARNING MESSAGES ILLUMINATED IN EICAS. CONSULTED QRH AND RETURNED TO AIRPORT. ADJUSTED GAP ON OLEO STRUT - CENTERED PROXIMITY SENSOR PER 32-61-05. JACKED AIRCRAFT AND CYCLED GEAR. OPS CHECK GOOD.