A flight instructor reported that while working on power off 180 and short field techniques in a bee...

Narrative:

Coming in on the last landing of the night after doing pattern work; we were working on power off 180 and short field techniques; after about 6 patterns we decided to make the last one a full stop and practice our crosswind technique. In the pattern I briefed [the student] that I would take controls when we were close to the runway environment to show her a float using ground effect if she needed to use it in an event of a power off landing. We were on final and crossed the runway threshold when I took over controls we were approximately 50-75 feet when we crossed the numbers; I then started to correct for the crosswind adding right rudder and left aileron as I got closer to the ground. I started pitching up in the flare to demonstrate a controlled stall over the runway using ground effect to my advantage; suddenly I found myself in a higher than normal pitch attitude which cause me to stall slightly higher than anticipated; this caused my right wing to fall suddenly and this is what made it make contact with the runway. It was a hard landing but I thought I had landed on the mains; it wasn't until we came to a complete stop on taxiway alpha that I saw the right rear wing tip had been bent up slightly. We were then told to taxi back to the ramp by tower; I was checking controls and they seemed operational. I did a closer inspection of the tip and found contact marks on outer mid tip as well as the rear tip. I believed I misjudged the actual height above the runway which caused me to stall and let the wing drop.

Original NASA ASRS Text

Title: A flight instructor reported that while working on power off 180 and short field techniques in a Beechcraft BE-33; the pilot found himself in a higher than normal pitch attitude which caused the plane to stall; resulting in the wingtip contacting the runway.

Narrative: Coming in on the last landing of the night after doing pattern work; we were working on power off 180 and short field techniques; after about 6 patterns we decided to make the last one a full stop and practice our crosswind technique. In the pattern I briefed [the student] that I would take controls when we were close to the runway environment to show her a float using ground effect if she needed to use it in an event of a power off landing. We were on final and crossed the runway threshold when I took over controls we were approximately 50-75 feet when we crossed the numbers; I then started to correct for the crosswind adding right rudder and left aileron as I got closer to the ground. I started pitching up in the flare to demonstrate a controlled stall over the runway using ground effect to my advantage; suddenly I found myself in a higher than normal pitch attitude which cause me to stall slightly higher than anticipated; this caused my right wing to fall suddenly and this is what made it make contact with the runway. It was a hard landing but I thought I had landed on the mains; it wasn't until we came to a complete stop on taxiway alpha that I saw the right rear wing tip had been bent up slightly. We were then told to taxi back to the ramp by tower; I was checking controls and they seemed operational. I did a closer inspection of the tip and found contact marks on outer mid tip as well as the rear tip. I believed I misjudged the actual height above the runway which caused me to stall and let the wing drop.

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.

Attributes
ACN	1364950
Time
Date	201606
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Bonanza 33
Operating Under FAR Part	Part 91
Flight Phase	Landing
Route In Use	Visual Approach
Flight Plan	VFR
Component
Aircraft Component	Wingtip
Person 1
Function	Pilot Flying
Qualification	Flight Crew Commercial Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 205 Flight Crew Total 1000 Flight Crew Type 167
Events
Anomaly	Deviation - Procedural Published Material / Policy Ground Event / Encounter Ground Strike - Aircraft Inflight Event / Encounter Loss Of Aircraft Control Inflight Event / Encounter Unstabilized Approach

A flight instructor reported that while working on power off 180 and short field techniques in a beechcraft be-33; the pilot found himself in a higher than normal pitch attitude which caused the plane to stall; resulting in the wingtip contacting the runway.