Narrative:

Flying northwest approximately 5-7 mi southeast of dade collier airport, the C152 which I was piloting was struck by an incredible force. 5 mins prior my passenger and I observed an L1011 at 4000-3000 ft flying eastbound as if to be approaching runway 9L at mia. I have concluded that my aircraft was hit by the L1011's vortex which were probably dragged in a southwest direction, from the wind, straight across our path. I presume there was at least one other aircraft hit by this L1011's vortex. I know this because 60 seconds after my aircraft was struck, I overheard a startled pilot and his instructor disclose their feelings for what had just occurred. Shortly after, I heard the instructor tell his student to commence, or continue from where they left off, the steep turn training which they were involved with previously. I feel this incident which shattered the back windshield in my aircraft and may have caused damage to the other aircraft could have been avoided. The hole in my aircraft was only 1/2 ft by 1 ft, but damage or death could have surpassed the existing state. In order to provide a safer atmosphere for pilots and their rights to fly through this concentrated flight training area, there should be warning made on the sectional. There are 2 'alert area' warnings for opa locka and tamiami traffic respectively. I propose dade collier airport be given its own 'alert area' warning, preferably in congruency with mia airspace so as to prevent from occurring further damage and even death. Callback conversation with reporter revealed the following information: reporter said that instructors he spoke to indicated they had had similar experiences with resulting skin wrinkles of their aircraft. Reporter states the motion he felt was a straight up and down movement, no turns at all. He must have crossed directly into the vortex. There was nothing but a laundry bag on the back seat which could not have broken the window. The break was about 1 ft by 1/2 ft hole. He and his passenger had bruises on their hips from the seat belt as they were thrown upward. He is grateful for the seat belt. Reporter's father is an air carrier pilot and suggested he send the ASRS report. None of the instructors he spoke with after the incident ever mentioned ASRS. He plans to inform everyone he knows who flies about ASRS. His father also mentioned that some foreign carriers practice touch and goes from the dade collier airport. This might have been the case with the L1011 who then just remained at low altitude to head toward mia. Suggestion for an alert area regarding training for dade collier as there are for the other airports nearby is worth consideration.

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Original NASA ASRS Text

Title: C152 ENCOUNTERS WAKE VORTEX FROM L1011. REAR WINDOW BREAKS.

Narrative: FLYING NW APPROX 5-7 MI SE OF DADE COLLIER ARPT, THE C152 WHICH I WAS PILOTING WAS STRUCK BY AN INCREDIBLE FORCE. 5 MINS PRIOR MY PAX AND I OBSERVED AN L1011 AT 4000-3000 FT FLYING EBOUND AS IF TO BE APCHING RWY 9L AT MIA. I HAVE CONCLUDED THAT MY ACFT WAS HIT BY THE L1011'S VORTEX WHICH WERE PROBABLY DRAGGED IN A SW DIRECTION, FROM THE WIND, STRAIGHT ACROSS OUR PATH. I PRESUME THERE WAS AT LEAST ONE OTHER ACFT HIT BY THIS L1011'S VORTEX. I KNOW THIS BECAUSE 60 SECONDS AFTER MY ACFT WAS STRUCK, I OVERHEARD A STARTLED PLT AND HIS INSTRUCTOR DISCLOSE THEIR FEELINGS FOR WHAT HAD JUST OCCURRED. SHORTLY AFTER, I HEARD THE INSTRUCTOR TELL HIS STUDENT TO COMMENCE, OR CONTINUE FROM WHERE THEY LEFT OFF, THE STEEP TURN TRAINING WHICH THEY WERE INVOLVED WITH PREVIOUSLY. I FEEL THIS INCIDENT WHICH SHATTERED THE BACK WINDSHIELD IN MY ACFT AND MAY HAVE CAUSED DAMAGE TO THE OTHER ACFT COULD HAVE BEEN AVOIDED. THE HOLE IN MY ACFT WAS ONLY 1/2 FT BY 1 FT, BUT DAMAGE OR DEATH COULD HAVE SURPASSED THE EXISTING STATE. IN ORDER TO PROVIDE A SAFER ATMOSPHERE FOR PLTS AND THEIR RIGHTS TO FLY THROUGH THIS CONCENTRATED FLT TRAINING AREA, THERE SHOULD BE WARNING MADE ON THE SECTIONAL. THERE ARE 2 'ALERT AREA' WARNINGS FOR OPA LOCKA AND TAMIAMI TFC RESPECTIVELY. I PROPOSE DADE COLLIER ARPT BE GIVEN ITS OWN 'ALERT AREA' WARNING, PREFERABLY IN CONGRUENCY WITH MIA AIRSPACE SO AS TO PREVENT FROM OCCURRING FURTHER DAMAGE AND EVEN DEATH. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR SAID THAT INSTRUCTORS HE SPOKE TO INDICATED THEY HAD HAD SIMILAR EXPERIENCES WITH RESULTING SKIN WRINKLES OF THEIR ACFT. RPTR STATES THE MOTION HE FELT WAS A STRAIGHT UP AND DOWN MOVEMENT, NO TURNS AT ALL. HE MUST HAVE CROSSED DIRECTLY INTO THE VORTEX. THERE WAS NOTHING BUT A LAUNDRY BAG ON THE BACK SEAT WHICH COULD NOT HAVE BROKEN THE WINDOW. THE BREAK WAS ABOUT 1 FT BY 1/2 FT HOLE. HE AND HIS PAX HAD BRUISES ON THEIR HIPS FROM THE SEAT BELT AS THEY WERE THROWN UPWARD. HE IS GRATEFUL FOR THE SEAT BELT. RPTR'S FATHER IS AN ACR PLT AND SUGGESTED HE SEND THE ASRS RPT. NONE OF THE INSTRUCTORS HE SPOKE WITH AFTER THE INCIDENT EVER MENTIONED ASRS. HE PLANS TO INFORM EVERYONE HE KNOWS WHO FLIES ABOUT ASRS. HIS FATHER ALSO MENTIONED THAT SOME FOREIGN CARRIERS PRACTICE TOUCH AND GOES FROM THE DADE COLLIER ARPT. THIS MIGHT HAVE BEEN THE CASE WITH THE L1011 WHO THEN JUST REMAINED AT LOW ALT TO HEAD TOWARD MIA. SUGGESTION FOR AN ALERT AREA REGARDING TRAINING FOR DADE COLLIER AS THERE ARE FOR THE OTHER ARPTS NEARBY IS WORTH CONSIDERATION.

Data retrieved from NASA's ASRS site as of July 2007 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.