C172 instructor reported experiencing a tail strike during rotation due to student pulling to hard o...

Attributes
ACN	1602841
Time
Date	201812
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	Takeoff
Person 1
Function	Pilot Not Flying Instructor
Qualification	Flight Crew Instrument Flight Crew Flight Instructor Flight Crew Commercial Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 250 Flight Crew Total 1440 Flight Crew Type 400
Events
Anomaly	Deviation - Procedural Published Material / Policy Ground Event / Encounter Ground Strike - Aircraft

Narrative:

I was instructing a new student pilot in his second lesson. For takeoff I was in the controls and I told him I would tell him when to pull on the yoke to rotate. My mistake was not telling him how hard to pull. He pulled the yoke very hard till it nearly hit the stops resulting in a tail strike which broke the tail tie down ring off the airplane. I pushed hard forward recovering the airplane and continued the takeoff under my control. I did not realize there had been a tail strike otherwise I would have circled around to land. When I got back to the ramp I realized the ring was missing and realized it had to have been from the tail strike. It will not happen again because I will always describe a rotation to a student in greater detail and guard the controls more closely with new students [are] doing takeoffs.

Original NASA ASRS Text

Title: C172 instructor reported experiencing a tail strike during rotation due to student pulling to hard on the yoke.

Narrative: I was instructing a new student pilot in his second lesson. For takeoff I was in the controls and I told him I would tell him when to pull on the yoke to rotate. My mistake was not telling him how hard to pull. He pulled the yoke very hard till it nearly hit the stops resulting in a tail strike which broke the tail tie down ring off the airplane. I pushed hard forward recovering the airplane and continued the takeoff under my control. I did not realize there had been a tail strike otherwise I would have circled around to land. When I got back to the ramp I realized the ring was missing and realized it had to have been from the tail strike. It will not happen again because I will always describe a rotation to a student in greater detail and guard the controls more closely with new students [are] doing takeoffs.

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.