As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDING GEAR RETRACTED DUE TO SAFETY PRESSURE SWITCH NOT DISENGAGING WHEN AIRSPEED DECREASES. FOUND DEFECTIVE BELLOWS NEEDED SUCTION PRESSURE TO FULLY DISCONNECT GEAR SYSTEM. SUBMITTER RECOMMENDS INSTALLING A SQUAT SWITCH INSTEAD. NO PREVENTIVE MAINTENANCE POSSIBLE. REMOVE AND REPLACE ONLY.