What was found
PITCH TRIM INOP MESSAGE, RETURNED TO BOS. REMOVED AND REPLACED HORIZONTAL STABILIZER CONTOL UNIT IAW EMB AMM 27-40-01. OPERATIONAL CHECK GOOD, RETURNED AIRCRAFT TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PITCH TRIM INOP MESSAGE, RETURNED TO BOS. REMOVED AND REPLACED HORIZONTAL STABILIZER CONTOL UNIT IAW EMB AMM 27-40-01. OPERATIONAL CHECK GOOD, RETURNED AIRCRAFT TO SERVICE.