Narrative:

While climbing to FL390 and passing through FL370 we felt a large mechanical bumping on the aircraft. The captain immediately identified the problem as a right engine surge or stall. He took control of the aircraft and directed me to execute the immediate action items. We notified ATC and began a descent while requesting a return to [departure airport]. I noticed the right engine N1 spiking to approximately 2% higher than the limit as well as spiking egt on the right engine. After completing the engine stall surge procedure we prepared for a single engine landing and landed with both engines in a flaps 20 configuration. Landing occurred without incident.

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Original NASA ASRS Text

Title: B767 First Officer reported a surge/stall in the Right Engine during climb. Engine thrust is reduced per the QRH and the flight returns to the Departure airport.

Narrative: While climbing to FL390 and passing through FL370 we felt a large mechanical bumping on the aircraft. The Captain immediately identified the problem as a right engine surge or stall. He took control of the aircraft and directed me to execute the immediate action items. We notified ATC and began a descent while requesting a return to [Departure Airport]. I noticed the right engine N1 spiking to approximately 2% higher than the limit as well as spiking EGT on the right engine. After completing the engine stall surge procedure we prepared for a single engine landing and landed with both engines in a flaps 20 configuration. Landing occurred without incident.

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.