As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DESCENT, NR 2 ENGINE VIBS WENT ABOVE 2.5 WITH WARNING LIGHT ON IN B CHANNEL. A CHANNEL WAS DEFERRED SO UNABLE TO CROSS CHECK. VIBRATIONS FELT IN THROTTLE AND AIRFRAME. SHUT NR 2 ENGINE DOWN IN FLIGHT IAW EMERGENCY PROCEDURES. PERFORMED TEST NR 16 LP COMPRESSOR ROTOR TRIM BALANCING PER MM 71-00-00 AND GROUND AVM SURVEY FORM M11-71-16. INSTALLED BALANCE PLATE, ENGINE VIBES WITHIN LIMITS. (M)