As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
"GEAR DISAGREE" WARNING MESSAGE AFTER T/O NOSE GEAR RED MAIN GEAR BOTH "AMBER" FLASHING "GREEN" ALTERNATING QRH PROCEDURES GEAR DOWN WITH ALL GEAR GREEN DOWN LANDED AT 66,7000,V/S-400 TOUCHDOWN. ACFT RETURNED TO DEPARTURE AFTER T/O -- EMERGENCY DECLARED AS A PRECAUTION. ADJUSTED PROXIMITY SENSOR PX24 & PX44 IAW AMM 32-61-05, OPS CHECKED GOOD.