Dash 8 flight crew reported intermittent engine surging during cruise and approach.

Attributes
ACN	1480343
Time
Date	201709
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	Dash 8 Series Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	Engine
Person 1
Function	Pilot Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument
Person 2
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Events
Anomaly	Aircraft Equipment Problem Less Severe

Narrative:

During cruise flight the right number 2 engine started to act abnormally. The number 2 engine was lagging when I changed power settings and started to surge +/- 10%. After a couple of minutes it began to stabilize again. The ca called dispatch and maintenance and they agreed that if it started again we would [advise ATC]. During our approach the engine began to surge again and the ca [advised ATC] as a precaution. We deemed it safest to keep the engine running for the approach and we made a safe landing.

Original NASA ASRS Text

Title: Dash 8 flight crew reported intermittent engine surging during cruise and approach.

Narrative: During cruise flight the right Number 2 engine started to act abnormally. The Number 2 engine was lagging when I changed power settings and started to surge +/- 10%. After a couple of minutes it began to stabilize again. The CA called dispatch and maintenance and they agreed that if it started again we would [advise ATC]. During our approach the engine began to surge again and the CA [advised ATC] as a precaution. We deemed it safest to keep the engine running for the approach and we made a safe landing.

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.