As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STAB TRIM CH1 KEEPS DISCONNECTING DURING CLIMB OUT AND RANDOMLY THROUGHOUT FLIGHT. RECONNECTS AND THEN DISCONNECTS. UPON INSPECTION OF PILOTS PITCH TRIM SWITCH, FOUND DEBRIS BETWEEN CONTACT POINTS; CLEANED DEBRIS IAW AMM 27-41-05. PERFORMED OPS CHECK OF HSTS IAW AMM 27-40-00. OPS CHECK GOOD. OK FOR SVC AT THIS TIME.