As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RETURNED TO THE FIELD DUE TO THE LANDING GEAR AIR TO GROUND MESSAGE ILLUMINATED. MAINTENANCE FOUND NOSE PROX SENSOR WOW CANNON PLUG LOOSE. RESECURED CANNON PLUG, FOUND RT FWD WOW SENSOR CRACKED AND FOUND LT AFT SENSOR INOP. MX REMOVED AND REPLACED LT AFT AND RT FWD SENSOR OPS CHECKED GOOD. P/N 8-527-01, LT S/N A-16169, RT S/N A-16161 BOTH TT 9428 AND 8737 TC.