As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STAB TRIM CAUTION MACH TRIM CAUTION IN FLIGHT, RAN QRH WOULD NOT ENGAGE. INSPECTED AIRCRAFT, NO MDC MSG NOTED. PREFORMED HORIZONTAIL STABLILIZER TRIM SYSTEM OPS TEST IAW AMM 27-40-00. NO DEFECTS NOTED, SYSTEM OPS CHECK GOOD, AIRCRAFT OK FOR SERVICE