As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS AFTER TAKE OFF, LANDING GEAR WOULD NOT RETRACT. ALL THREE GREEN GEAR LIGHTS AND ALL THREE RED GEAR LIGHTS ILLUMINATED WHEN GEAR HANDLE IN UP POSITION. MAINTENANCE REPLACED MANUEL EXTENSION LIMIT SWITCH IAW WDM 32-25-11. ACCOMPLISHED FIM 29-20-00810-808 AND PSTU BITE PROCEDURE FIM 32-09-00-810-801 TEST PASSED NO FAULTS. ACCOMPLISHEDGEAR SWING IAW 32-32-00-710-801 NO FAULTS NOTED.