As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SPEED TRIM FAILED, MACH TRIM FAILED SINGLE CHANNEL ONLY. ACFT GROUNDED. TROUBLESHOT IAW FIM 22-11, TASK 801. REPLACED FCC "A" IAW MM 22-11-33. FCC A BITE 35 NORMAL. PERFORMED SPEED TRIM BITE 60.32 & MACH TRIM BITE 60.33. BOTH TEST NORMAL. PERFORMED LAND VERIFY BITE 49 & HGS SENSOR TEST FOR FCC. ACFT STATUS & PLACARD REMAIN THE SAME CAT IIIA AUTOLAND & HGS.