As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT MAIN GEAR FAILED TO RETRACT ON TAKEOFF. AFT CYCLING GEAR IAW QRH GEAR AGAIN REMAINED EXTENDED APPROXIMATELY 3-4 MINUTES LATER WITH NO CREW ACTION GEAR RETRACTED ON ITS OWN. HYD NORMAL. ALTITUDE APPROX 26000 AND 230 KTS WHEN RETRACTION FINALLY OCCURED. R/I LANDING GEAR SELECTOR VALVE AND LEAK CK'D OK PER MM 32-31-20-4.