C170 instructor reports a ground loop by the pilot flying during a touch and go. The instructor take...

Attributes
ACN	1114916
Time
Date	201309
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	Cessna 170
Operating Under FAR Part	Part 91
Flight Phase	Takeoff
Route In Use	None
Flight Plan	None
Person 1
Function	Instructor
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Flight Instructor Flight Crew Flight Engineer Flight Crew Air Transport Pilot (ATP) Flight Crew Commercial
Experience	Flight Crew Last 90 Days 25 Flight Crew Total 7743 Flight Crew Type 15
Events
Anomaly	Inflight Event / Encounter Loss Of Aircraft Control

Narrative:

I was flying as pilot in command in right seat. An acquaintance; who is a commercial pilot; was flying the aircraft from the left seat. He made me take off and made left traffic for further touch and goes. A good landing (3 point) was then made; flaps were reduced to 10 degrees and take off power applied. The aircraft was straight and on centerline. At approximately 40 mph IAS; the nose began coming around to the right. The tail wheel was still on the runway. I took control; applied full aft elevator and full left rudder; but the aircraft ground looped to the right; tipping and hitting the left wingtip and left elevator on the grass before returning to an upright position. I secured the aircraft and we exited the aircraft. Upon inspection; we determined the aircraft could be safely started and taxied off the runway. I taxied the aircraft to a maintenance facility on the field. Current weather was approximately 1;500 ft scattered clouds with no clouds above. Wind was calm; visibility was plus 10 miles; and runway was dry.

Original NASA ASRS Text

Title: C170 Instructor reports a ground loop by the pilot flying during a touch and go. The instructor takes control but is unable to prevent the left wing tip and horizontal stabilizer from contacting the ground.

Narrative: I was flying as pilot in command in right seat. An acquaintance; who is a commercial pilot; was flying the aircraft from the left seat. He made me take off and made left traffic for further touch and goes. A good landing (3 point) was then made; flaps were reduced to 10 degrees and take off power applied. The aircraft was straight and on centerline. At approximately 40 MPH IAS; the nose began coming around to the right. The tail wheel was still on the runway. I took control; applied full aft elevator and full left rudder; but the aircraft ground looped to the right; tipping and hitting the left wingtip and left elevator on the grass before returning to an upright position. I secured the aircraft and we exited the aircraft. Upon inspection; we determined the aircraft could be safely started and taxied off the runway. I taxied the aircraft to a maintenance facility on the field. Current weather was approximately 1;500 FT scattered clouds with no clouds above. Wind was calm; visibility was plus 10 miles; and runway was dry.

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.

C170 instructor reports a ground loop by the pilot flying during a touch and go. The instructor takes control but is unable to prevent the left wing tip and horizontal stabilizer from contacting the ground.