As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDING GEAR LEVER WOULD NOT RELEASE FROM DOWN POSITION ON TAKEOFF. PERFORMED ALTERNATE GEAR RETRACTION PROCEDURE PER THE QRH. REMOVED AND REPLACED RIGHT STRUT GROUND PROXIMITY SENSOR. CYCLED LANDING GEAR SEVERAL TIMES. OPS AND LEAK CHECKS GOOD IAW EMB120 MM 32-01-01. P/N: 20505-001-01.