As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH INTO AIRCRAFT, WAS UNABLE TO EXTEND OR RETRACT LANDING GEAR. AIRCRAFT MADE EMERGENCY LANDING CAUSING GEAR TO COLLAPSE. FURTHER INVESTIGATION OF THE INCIDENT SHOWED THERE HAD BEEN MAINTENANCE PERFORMED ON LANDING GEAR SYSTEM BY PERSONS UNKNOWN. DURING INVESTIGATION, HYDRAULIC RESERVOIRS WERE FOUND LOW AND NOT SERVICED CORRECTLY CAUSING LANDING GEAR TO MALFUNCTION