As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DEPARTURE, UPON SELECTING GEAR UP GEAR DISAGREE WARNING MSG ILLUMINATED. LEFT MAIN GEAR SHOWED RED BOX & SLASHES. FOLLOWED QRH PROCEDURE FOR MANUAL GEAR EXTENSION. ADJUSTED LT MLG UPLOCK PROX SENSOR IAW AMM 32-61-05. OPERATIONS CHEEKED GOOD. SEE CONTINUATION CARD 099345 FOR WORK PERFORMED.