What was found
ON CLIMBOUT FROM JAX, CLIMBING THROUGH 15000FT RECEIVED STAB TRIM/MACH TRIM CAUTION MSG, UNABLE TO REENGAGE. EMERGENCY DECLARED, A/C RETURNED TO JAX LANDED SAFELY. REMOVED AND REPLACED HORIZONTAL STAB TRIM MCU. OPS CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ON CLIMBOUT FROM JAX, CLIMBING THROUGH 15000FT RECEIVED STAB TRIM/MACH TRIM CAUTION MSG, UNABLE TO REENGAGE. EMERGENCY DECLARED, A/C RETURNED TO JAX LANDED SAFELY. REMOVED AND REPLACED HORIZONTAL STAB TRIM MCU. OPS CHECK GOOD.