What was found
DURING DECENT AT 29000 FT AND 290 KTS, PILOT EXPERIENCED A VIOLENT SHAKE IN THE YOKE. SLOWED TO 250 KTS AND SHAKE WENT AWAY. MAINTENANCE FOUND THE LEFT AILERON CENTER MOUNT UPPER BUSHING MISSING.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING DECENT AT 29000 FT AND 290 KTS, PILOT EXPERIENCED A VIOLENT SHAKE IN THE YOKE. SLOWED TO 250 KTS AND SHAKE WENT AWAY. MAINTENANCE FOUND THE LEFT AILERON CENTER MOUNT UPPER BUSHING MISSING.