B767-200
Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Less Severe
Flight Crew Returned To Clearance; Flight Crew Became Reoriented; Flight Crew Regained Aircraft Control
Aircraft
Enroute we were at our assigned altitude of FL270 when the aircraft suddenly pitched up uncommanded and went into a climb. The flying pilot disconnected the autopilot and auto-throttle and manually brought the aircraft to the assigned altitude.
B767-200 Captain reported sudden un-commanded pitch-up during cruise.