As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE FLIGHT NR 3239, THE CREW REPORTED THE GEAR HANDLE WOULD NOT MOVE TO THE UP POSITION WITHOUT DEPRESSING THE RELEASE BUTTON ON THE GEAR HANDLE CONTROL BOX. MAINTENANCE INSPECTED AND REPLACED AIR/GROUND RELAY KOO24. OPERATIONAL CHECKS WERE GOOD.