As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF, CREW OBSERVED VIBRATION. ENGINE VIBRATION INDICATED .5. RETURNED TO STATION. INSPECTED ENTIRE EXTERIOR OF AC CHECKED GEAR DOORS, RUDDER, FLAPS SPOILERS. NO DEFECTS NOTED. AIRCRAFT RETURNED TO SERVICE. NO SUBSEQUENT OCCURRENCES. (M)