As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR UP DISAGREE INDICATION AFTER TAKEOFF. LEFT MAIN GEAR INDICATED UNSAFE. ACFT RETURNED TO DEPARTURE AFTER T/O, EMERGENCY ACTIONS: LANDING GEAR RETRACTION SYSTEM. COMPLIED WITH VISUAL INSPECTION OF LT MLG AND UPLOCK ASSY IAW AMM 32-32-05. COMPLIED WITH FUNCTIONAL CHECK OF THE LANDING GEAR EXT/RET/ SYSTEM IAW AMM 32-32-00. OPS CHECK GOOD.