As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING GEAR RETRACTION, RT MAIN GEAR WOULD NOT RETRACT, INDICATED GREEN DOWN WITH RED DOOR LIGHT. THEN LT MAIN GEAR HAD SAME INDICATIONS. 20 SECONDS LATER GEAR HANDLE FLASHED. NOSE GEAR AND DOOR APPARENTLY BEHAVED PROPERLY. LOWERED ALL LDG GEAR IAW ABNORMAL CHECKLIST. REPLACED RT MLG DOOR ACTUATOR PROXIMITY SWITCH, INSTALLED AN INSPECTED AND TESTED SWITCH. INSTALLATION ACCOMPLISHED IAW F2000 MM WORK CARD 32-311. RETRACTION TESTED AND LEAK CHECKED GOOD IAW F2000 WORK CARD 32-300.