Tailwheel aircraft trainee and instructor pilot reported a loss of control and ground loop resulted ...

Attributes
ACN	1597599
Time
Date	201811
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	Small Aircraft High Wing 1 Eng Fixed Gear
Operating Under FAR Part	Part 91
Flight Phase	Takeoff
Flight Plan	None
Person 1
Function	Pilot Not Flying Flight Engineer / Second Officer Instructor
Qualification	Flight Crew Instrument Flight Crew Flight Engineer Flight Crew Flight Instructor Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 45 Flight Crew Total 16016 Flight Crew Type 350
Person 2
Function	Trainee Pilot Flying
Qualification	Flight Crew Private
Experience	Flight Crew Total 75 Flight Crew Type 7
Events
Anomaly	Ground Event / Encounter Loss Of Aircraft Control

Narrative:

[Private pilot] had requested I provide him with additional flight instruction in his tailwheel conversion [aircraft]. I reviewed [the pilot's] logbook which showed he already had received four hours of training including take offs; landings; and taxiing the aircraft. I then observed his handling of the aircraft during our flight from ZZZ; where he had purchased it; to ZZZ1. Prior to the training flight; I provided several hours of ground instruction; observed him while he taxied the aircraft and briefed him before starting the abort training. He performed the takeoff roll well; but upon aborting the takeoff; he over-corrected and lost control. Although I tried to correct; since the aircraft was not equipped with brakes on the right side; I didn't have sufficient control to correct for his inputs. The left main gear collapsed causing damage to the aircraft; but fortunately no one was injured. In future; I will make sure that I have brake when flying with a student.

Original NASA ASRS Text

Title: Tailwheel aircraft trainee and instructor pilot reported a loss of control and ground loop resulted in damage to the aircraft.

Narrative: [Private pilot] had requested I provide him with additional flight instruction in his tailwheel conversion [aircraft]. I reviewed [the pilot's] logbook which showed he already had received four hours of training including take offs; landings; and taxiing the aircraft. I then observed his handling of the aircraft during our flight from ZZZ; where he had purchased it; to ZZZ1. Prior to the training flight; I provided several hours of ground instruction; observed him while he taxied the aircraft and briefed him before starting the abort training. He performed the takeoff roll well; but upon aborting the takeoff; he over-corrected and lost control. Although I tried to correct; since the aircraft was not equipped with brakes on the right side; I didn't have sufficient control to correct for his inputs. The left main gear collapsed causing damage to the aircraft; but fortunately no one was injured. In future; I will make sure that I have brake when flying with a student.

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.