As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THIS AUTOPILOT WAS INSTALLED 1/23/95. IT HAS A TUBE THAT IS TEE`D INTO THE STATIC SYSTEM AND RUNS TO THE ALTITUDE HOLD PRESSURE TRANSDUCER. THIS PLASTIC TUBE LOST IS MECHANICAL PROPERTIES AND FELL APART. THIS OPEND UP THE STATIC SYSTEM TO CABIN PRESSURE. RECOMMENDATION-DO NOT USE THIS PLASTIC TUBING ON ANY AIRCRAFT. (K)