Narrative:

As we were taxiing the airplane into the FBO ramp in teterboro; we noticed it [seemed] narrow with airplanes parked on both sides of us; but plenty wide enough for our g-v. We were met by 3 marshalers; one in front and one on each side. They guided us down the right side of the alley. We thought they were going to 'nose us in' and use a tug to turn us around to face the exit. As we got closer to the end of the alley; the marshalers had us make a small turn to the right to get us closer to the airplanes on the right side of us with still plenty of room between us. They then had us make a hard left 180 degree turn to face the exit. I remember seeing the pilot flying use very little power on the right engine (less then a knob up) while the left engine remained at idle to keep the airplane very slow due to the proximity of the parked aircraft. After engine shut down; the pilots from a nearby corporate jet came over to inform us that our turn had caused their gust lock to disengage and they could not re-engage it. They were concerned there could be some damage. They also said another corporate jet had been 'knocked around' as well. I told them I was shocked because we had used such little power due to our light weight. They told us they thought the marshalers had us too close to the parked aircraft and should have never had us do a 180 degree turn that close. When the turn was made; I did not think our exhaust would be an issue because we were light and used so little power. A gusty 28 KT wind directly on their tail did not help our cause either. They informed the FBO ramp agents and their supervisors of the event. In retrospect; it would have been better for all involved if we would have stopped the airplane straight ahead and been tugged into place instead of following the marshaler's directions. I have made this same turn many times in my career with no problems. I will think twice before doing another turn in close proximity to other aircraft.

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Original NASA ASRS Text

Title: A TEB FBO marshaling crew guided a G-V into a tight ramp area and directed a 180 degree turn between aircraft which may have allowed their jet blast to damage nearby aircraft.

Narrative: As we were taxiing the airplane into the FBO ramp in Teterboro; we noticed it [seemed] narrow with airplanes parked on both sides of us; but plenty wide enough for our G-V. We were met by 3 marshalers; one in front and one on each side. They guided us down the right side of the alley. We thought they were going to 'nose us in' and use a tug to turn us around to face the exit. As we got closer to the end of the alley; the marshalers had us make a small turn to the right to get us closer to the airplanes on the right side of us with still plenty of room between us. They then had us make a hard left 180 degree turn to face the exit. I remember seeing the pilot flying use very little power on the right engine (less then a knob up) while the left engine remained at idle to keep the airplane very slow due to the proximity of the parked aircraft. After engine shut down; the pilots from a nearby corporate jet came over to inform us that our turn had caused their gust lock to disengage and they could not re-engage it. They were concerned there could be some damage. They also said another corporate jet had been 'knocked around' as well. I told them I was shocked because we had used such little power due to our light weight. They told us they thought the marshalers had us too close to the parked aircraft and should have never had us do a 180 degree turn that close. When the turn was made; I did not think our exhaust would be an issue because we were light and used so little power. A gusty 28 KT wind directly on their tail did not help our cause either. They informed the FBO Ramp Agents and their Supervisors of the event. In retrospect; it would have been better for all involved if we would have stopped the airplane straight ahead and been tugged into place instead of following the marshaler's directions. I have made this same turn many times in my career with no problems. I will think twice before doing another turn in close proximity to other aircraft.

Data retrieved from NASA's ASRS site as of July 2013 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.