What was found
STAB TRIM/MACH TRIM WILL NOT ENGAGE. REMOVED AND REPLACED HSTCU WITH SERVICEABLE UNIT IAW 27-41-00. NO DEFECTS NOTED AT THIS TIME. A/C RELEASE TO CAT II STATUS. S/N OFF: 540.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
STAB TRIM/MACH TRIM WILL NOT ENGAGE. REMOVED AND REPLACED HSTCU WITH SERVICEABLE UNIT IAW 27-41-00. NO DEFECTS NOTED AT THIS TIME. A/C RELEASE TO CAT II STATUS. S/N OFF: 540.