A B-757 crew reported a rejected takeoff at 80 kts because of a +/_ 0.1 EPR fluctuation.

Attributes
ACN	1087943
Time
Date	201305
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Component
Aircraft Component	Turbine Engine
Person 1
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Pilot Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

Between setting standard power and 80 KTS; both the pilot flying and I (pilot monitoring) noticed an engine surge on the left EPR gauge as well as feeling it. The captain rejected the takeoff at 80 KTS. The surge was approximately +/- .1 EPR.

Original NASA ASRS Text

Title: A B-757 crew reported a rejected takeoff at 80 kts because of a +/_ 0.1 EPR fluctuation.

Narrative: Between setting Standard Power and 80 KTS; both the Pilot Flying and I (Pilot Monitoring) noticed an engine surge on the left EPR gauge as well as feeling it. The Captain rejected the takeoff at 80 KTS. The surge was approximately +/- .1 EPR.

Data retrieved from NASA's ASRS site as of July 2013 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.