As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON ROTATION DURING TAKE OFF LG AIR/GND FAIL ILLUMINATED QRH PROCEDURE COMPLIED WITH - GEAR RETRACTION ISSUE DECLARED EMERGENCY FLT DLYD AM -C/A-DURING INITIAL EVALUATION OF NOSE LANDING GEAR WHEEL WELL, FOUND CANNON PLUG J0775 LOOSE FROM THE UP/LOCK PROXIMITY SWITCH, RESECURED IAW AMM 32-63-05. REQ. GEAR SWING.