SR20 flight instructor reported a tail strike that occurred on takeoff.

Attributes
ACN	1631886
Time
Date	201903
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	SR20
Operating Under FAR Part	Part 91
Flight Phase	Takeoff
Route In Use	None
Flight Plan	None
Person 1
Function	Instructor Pilot Flying
Qualification	Flight Crew Instrument Flight Crew Flight Instructor Flight Crew Commercial
Experience	Flight Crew Last 90 Days 90 Flight Crew Total 6600 Flight Crew Type 1500
Events
Anomaly	Deviation - Procedural Published Material / Policy Ground Event / Encounter Ground Strike - Aircraft

Narrative:

Student pilot was practicing simulated soft field takeoffs on runway xx at ZZZ. Winds were from the south (left hand crosswind) and about 4 knots. On one occasion; student was unable to maintain satisfactory lateral control and transferred controls to instructor. Instructor then demonstrated; with student shadowing on controls; proper technique. On subsequent takeoff; student again experienced difficulty in maintaining lateral control and transferred controls to instructor. During the transfer; the aircraft pitched up and a tail strike resulted (but was not recognized at the time). On climb-out; the flap position indicator was observed to be in the fully retracted position (normal procedure is 50% flap extension). Likely causes of the incident are failure to adhere to check list items due to distraction of (1) focus on the control issues and (2) presence of additional aircraft waiting to take the runway. Corrections taken; instructor took a self-imposed two day safety stand-down to analyze actions and identify root causes and hazardous attitudes.

Original NASA ASRS Text

Title: SR20 Flight Instructor reported a tail strike that occurred on takeoff.

Narrative: Student Pilot was practicing simulated soft field takeoffs on Runway XX at ZZZ. Winds were from the south (left hand crosswind) and about 4 knots. On one occasion; Student was unable to maintain satisfactory lateral control and transferred controls to Instructor. Instructor then demonstrated; with Student shadowing on controls; proper technique. On subsequent takeoff; Student again experienced difficulty in maintaining lateral control and transferred controls to instructor. During the transfer; the aircraft pitched up and a tail strike resulted (but was not recognized at the time). On climb-out; the flap position indicator was observed to be in the fully retracted position (normal procedure is 50% flap extension). Likely causes of the incident are failure to adhere to check list items due to distraction of (1) focus on the control issues and (2) presence of additional aircraft waiting to take the runway. Corrections taken; Instructor took a self-imposed two day safety stand-down to analyze actions and identify root causes and hazardous attitudes.

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.