A piper PA31 captain reported an aborted takeoff due to engine surging.

Attributes
ACN	1477532
Time
Date	201708
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	PA-31 Navajo/Chieftan/Mojave/T1040
Operating Under FAR Part	Part 135
Flight Phase	Takeoff
Component
Aircraft Component	Engine
Person 1
Function	Captain Pilot Not Flying
Events
Anomaly	Aircraft Equipment Problem Less Severe

Narrative:

Upon completion of runway items checklist. Trainee applied takeoff power per PA-31 SOP. [Trainee] continued with proper calls and proper procedures. At about 80KTS I noticed a surging of the aircraft's right engine. I quickly checked engine gauges and fuel indications; no apparent indication for engine surging. The surging continued as the aircraft continued to accelerate I then elected to command an abort via proper callouts and took command of the aircraft from trainee. We slowed the aircraft and exited the runway and returned to the ramp.

Original NASA ASRS Text

Title: A Piper PA31 Captain reported an aborted takeoff due to engine surging.

Narrative: Upon completion of Runway items checklist. Trainee applied takeoff power per PA-31 SOP. [Trainee] continued with proper calls and proper procedures. At about 80KTS I noticed a surging of the aircraft's right engine. I quickly checked engine gauges and fuel indications; no apparent indication for engine surging. The surging continued as the aircraft continued to accelerate I then elected to command an abort via proper callouts and took command of the aircraft from Trainee. We slowed the aircraft and exited the runway and returned to the ramp.

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.