Narrative:

Our initial clearance, as given by the ground controller, was to taxi to parking, but to hold short of taxiway D. We proceeded to taxi down taxiway right. As we approached taxiway D, we received a new clearance to pass behind a B727, passing from left to right, on taxiway D and to then avoid traffic taxiing out of our parking ramp. It should be noted that I am unsure if the controller cautioned me to avoid the jet blast from the B727, at this point. We brought our aircraft to a complete stop, holding short of taxiway D, in order to wait for the passing B727. The B727, an air carrier, passed in front of us, then to the right, and came to a full stop at the intersection of taxiway D and runway 12L, behind the hold short line. After the B727 came to a full stop, I told my student to begin taxiing onto taxiway right in a fashion where our aircraft would be hugging the far left side of the taxiway. As we transitioned midway between txwys right/D, our aircraft now in an opposing direction to the B727, the boeing was cleared across runway 12L. As the B727 throttled up, I began to notice that our aircraft was starting to buffet from its jet blast. At this point, I took control of our aircraft. The jet blast was hitting our vertical stabilizer on the right side, the aircraft then yawed to the right at an angle perpendicular to the B727. With our forward momentum, our ground track took us directly behind the B727. Here I remember that I was trying to stop the forward motion of our aircraft by applying full brakes. Also, I tried to steer the aircraft back towards the left with full left rudder but to no avail. I remember skidding at an angle to the left, and, soon after, I remember the aircraft being lifted into the air, right wing and tail first (all 3 wheels were off the ground). The aircraft struck the left wingtip along with the propeller. As the propeller struck the ground, the engine abruptly stopped running. The aircraft up righted itself and came to rest on all 3 wheels, facing in a direction opposite of the B727. I remember somebody asking us if we were ok over the ground control frequency. I replied that we were. I secured the aircraft and my student and I quickly exited the aircraft. After inspecting the aircraft, I contacted ground control and told them that I would tow the airplane back to parking by pushing it. I want to make it known that I am unsure of the exact content of the radio xmissions between the ground controller and myself. When looking back on my previous flight experience, it should be noted that I have been in this same situation before. I have received the same exact clearance before. I have taxied behind this same type of aircraft (last time, a freighter B727) before, along with other types of large aircraft (another passenger B727, a freighter DC8, along with others), and all of this happening at the same taxiway intersection. I want to emphasize that if this situation never had occurred and this type of situation presented itself again, I would have probably accepted the same clearance and passed behind the stopped aircraft, as I have done in the past. I also would like to emphasize that I would have not elected to taxi on behind the air carrier B727 if I had seen the aircraft powering up to taxi across runway 12L, or if I had known that it was going to be cleared to taxi across runway 12L, from a dead stop.

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Original NASA ASRS Text

Title: AN INSTRUCTOR AND STUDENT IN A C150 HAVE A JET BLAST ENCOUNTER WITH AN ACR B727 AND THEIR ACFT IS DAMAGED.

Narrative: OUR INITIAL CLRNC, AS GIVEN BY THE GND CTLR, WAS TO TAXI TO PARKING, BUT TO HOLD SHORT OF TXWY D. WE PROCEEDED TO TAXI DOWN TXWY R. AS WE APCHED TXWY D, WE RECEIVED A NEW CLRNC TO PASS BEHIND A B727, PASSING FROM L TO R, ON TXWY D AND TO THEN AVOID TFC TAXIING OUT OF OUR PARKING RAMP. IT SHOULD BE NOTED THAT I AM UNSURE IF THE CTLR CAUTIONED ME TO AVOID THE JET BLAST FROM THE B727, AT THIS POINT. WE BROUGHT OUR ACFT TO A COMPLETE STOP, HOLDING SHORT OF TXWY D, IN ORDER TO WAIT FOR THE PASSING B727. THE B727, AN ACR, PASSED IN FRONT OF US, THEN TO THE R, AND CAME TO A FULL STOP AT THE INTXN OF TXWY D AND RWY 12L, BEHIND THE HOLD SHORT LINE. AFTER THE B727 CAME TO A FULL STOP, I TOLD MY STUDENT TO BEGIN TAXIING ONTO TXWY R IN A FASHION WHERE OUR ACFT WOULD BE HUGGING THE FAR L SIDE OF THE TXWY. AS WE TRANSITIONED MIDWAY BTWN TXWYS R/D, OUR ACFT NOW IN AN OPPOSING DIRECTION TO THE B727, THE BOEING WAS CLRED ACROSS RWY 12L. AS THE B727 THROTTLED UP, I BEGAN TO NOTICE THAT OUR ACFT WAS STARTING TO BUFFET FROM ITS JET BLAST. AT THIS POINT, I TOOK CTL OF OUR ACFT. THE JET BLAST WAS HITTING OUR VERT STABILIZER ON THE R SIDE, THE ACFT THEN YAWED TO THE R AT AN ANGLE PERPENDICULAR TO THE B727. WITH OUR FORWARD MOMENTUM, OUR GND TRACK TOOK US DIRECTLY BEHIND THE B727. HERE I REMEMBER THAT I WAS TRYING TO STOP THE FORWARD MOTION OF OUR ACFT BY APPLYING FULL BRAKES. ALSO, I TRIED TO STEER THE ACFT BACK TOWARDS THE L WITH FULL L RUDDER BUT TO NO AVAIL. I REMEMBER SKIDDING AT AN ANGLE TO THE L, AND, SOON AFTER, I REMEMBER THE ACFT BEING LIFTED INTO THE AIR, R WING AND TAIL FIRST (ALL 3 WHEELS WERE OFF THE GND). THE ACFT STRUCK THE L WINGTIP ALONG WITH THE PROP. AS THE PROP STRUCK THE GND, THE ENG ABRUPTLY STOPPED RUNNING. THE ACFT UP RIGHTED ITSELF AND CAME TO REST ON ALL 3 WHEELS, FACING IN A DIRECTION OPPOSITE OF THE B727. I REMEMBER SOMEBODY ASKING US IF WE WERE OK OVER THE GND CTL FREQ. I REPLIED THAT WE WERE. I SECURED THE ACFT AND MY STUDENT AND I QUICKLY EXITED THE ACFT. AFTER INSPECTING THE ACFT, I CONTACTED GND CTL AND TOLD THEM THAT I WOULD TOW THE AIRPLANE BACK TO PARKING BY PUSHING IT. I WANT TO MAKE IT KNOWN THAT I AM UNSURE OF THE EXACT CONTENT OF THE RADIO XMISSIONS BTWN THE GND CTLR AND MYSELF. WHEN LOOKING BACK ON MY PREVIOUS FLT EXPERIENCE, IT SHOULD BE NOTED THAT I HAVE BEEN IN THIS SAME SIT BEFORE. I HAVE RECEIVED THE SAME EXACT CLRNC BEFORE. I HAVE TAXIED BEHIND THIS SAME TYPE OF ACFT (LAST TIME, A FREIGHTER B727) BEFORE, ALONG WITH OTHER TYPES OF LARGE ACFT (ANOTHER PAX B727, A FREIGHTER DC8, ALONG WITH OTHERS), AND ALL OF THIS HAPPENING AT THE SAME TXWY INTXN. I WANT TO EMPHASIZE THAT IF THIS SIT NEVER HAD OCCURRED AND THIS TYPE OF SIT PRESENTED ITSELF AGAIN, I WOULD HAVE PROBABLY ACCEPTED THE SAME CLRNC AND PASSED BEHIND THE STOPPED ACFT, AS I HAVE DONE IN THE PAST. I ALSO WOULD LIKE TO EMPHASIZE THAT I WOULD HAVE NOT ELECTED TO TAXI ON BEHIND THE ACR B727 IF I HAD SEEN THE ACFT POWERING UP TO TAXI ACROSS RWY 12L, OR IF I HAD KNOWN THAT IT WAS GOING TO BE CLRED TO TAXI ACROSS RWY 12L, FROM A DEAD STOP.

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.