As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH, LANDING GEAR DID NOT EXTEND. PERFORMED ELECTRIC OVERRIDE. SLAVED IN GEAR CONTROL BOX GEAR RELAY BOX AND CHANGED GEAR SOLENOID VALVE. REPLACED SOLENOID SELECTOR VALVE FOR TROUBLESHOOTING. SYSTEM STILL CHECKS BAD. REMOVED AND REPLACED NOSE A DOWN PROXIMITY SENSOR WITH A SERVICEABLE UNIT IAW MM 32-61-01. PERFORMED GEAR SWING, OPS CHECKS GOOD.