What was found
STAB TRIM/MACH TRIM CAUTION MESSAGE IN FLIGHT. STAB TRIM STUCK AT 4.4 DEGREES. FLAPS AT 20 WHEN FAILURE OCCURRED, BOTH CHANNELS. REMOVED AND REPLACED STAB/MACH TRIM PANEL ASSEMBLY IAW AMM 27-40-00. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
STAB TRIM/MACH TRIM CAUTION MESSAGE IN FLIGHT. STAB TRIM STUCK AT 4.4 DEGREES. FLAPS AT 20 WHEN FAILURE OCCURRED, BOTH CHANNELS. REMOVED AND REPLACED STAB/MACH TRIM PANEL ASSEMBLY IAW AMM 27-40-00. (M)