As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EICAS MSG STAB TRIM DISPLAYED, & STAB TRIM LIGHT ILLUMINATED. STABILIZER TRIM OPERATES AT ONE HALF SPEED. REPLACED LT STAB TRIM HYD CONTROL PRESS SWITCH IAW AMM 27-48-00. ACCOMPLISHED OPERATIONAL TEST IAW FIM 27-09. OPERATIONAL TESTED GOOD.