B767-200 captain reported sudden un-commanded pitch-up during cruise.

Attributes
ACN	1702011
Time
Date	201911
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Environment
Light	Dawn
Aircraft 1
Make Model Name	B767-200
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe

Narrative:

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.

Original NASA ASRS Text

Title: B767-200 Captain reported sudden un-commanded pitch-up during cruise.

Narrative: 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.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.