PA-28 Cherokee/Archer/Dakota/Pillan/Warrior
Flight Crew Commercial; Flight Crew Flight Instructor; Flight Crew Multiengine; Flight Crew Instrument
Flight Crew Last 90 Days 100; Flight Crew Total 830; Flight Crew Type 700
Ground Event / Encounter Ground Strike - Aircraft; Inflight Event / Encounter Wake Vortex Encounter
General None Reported / Taken
Environment - Non Weather Related
I was on a training flight with my student; who was a couple lessons before his Private Pilot Check Ride. We took off Runway 5 at the Melbourne International Airport (MLB) and departed the pattern to the northwest. We reviewed all the maneuvers the student would be doing on his check ride and then came back to MLB for some landing practice. We were given instructions by the Tower to enter a left base for Runway 9L and to report a 2 mile base. We were given a clearance to do a touch and go on Runway 9L. We stayed in the 9L pattern for 3 landings before deciding to make a full stop back to the ramp. Tower gave us instructions to enter a left base for Runway 5 where we would be making the full stop landing. The winds were coming from 060 at approximately 16 KTS with gusts as high as 23. My student was flying the airplane and he decided to come in with partial flaps and at a higher approach speed because of the windy conditions. On final we established the proper crosswind landing technique and had a stable approach down to the runway. As my student started to round out and flare the airplane; the left wing dropped violently. As soon as I felt the wing dropping; I took controls and added full power and tried to recover the airplane. We were already on the runway; so I decided the safest thing to do was bring the airplane to a stop and taxi back to the ramp. An MD-88 departed Runway 9R while we were on base for Runway 5; Tower did not issue a wake turbulence warning to us. I suspected we caught wind shear and because of our slow airspeed and low altitude I wasn't able to recover before the wing tip contacted the runway. There are a couple of hangars and buildings toward the approach end of the runway so that might have played into account.
PA-28 instructor pilot reported he and his student encountered wake vortex from an MD-88 departing another runway that caused a roll resulting in a wingtip strike.