What was found
LHR - EXTENSIVE VIBRATION IN CONTROL COLUMN FORE AND AFT IN CLIMB-OUT FOR A SHORT PERIOD AND FOR AN EXTENDED PERIOD IN CRUISE. FOUND THE NR 1 AUTO PILOT TO BE AT FAULT. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LHR - EXTENSIVE VIBRATION IN CONTROL COLUMN FORE AND AFT IN CLIMB-OUT FOR A SHORT PERIOD AND FOR AN EXTENDED PERIOD IN CRUISE. FOUND THE NR 1 AUTO PILOT TO BE AT FAULT. (M)