Narrative:

After landing we had a wingtip strike with another aircraft on the ramp. The conditions outside were night with moderate rain. Upon pulling into the ramp; the captain and I both noticed how packed and dark the ramp was. We stopped short to wait for a marshaller. Once we saw a marshaller with lit wands; we proceeded onto the ramp. As we started down the alleyway we both noticed it was a very tight squeeze; so we stopped again and waited for a wing walker. One wing walker showed on the left side without wands while there was none on the right side. He signaled for us to go to the right as there was a [citation] close on the left. As we proceeded further into the alley we approached an aircraft from the right that I thought was a little too close to continue so we stopped again. Finally a second wing walker ran across the ramp to watch our right wing tip. We proceeded at idle power towards the marshaller as he kept telling us to come straight in. The right wing walker; whom had no lit wands; was telling us to come to the left at first and then straight. As we were approximately 6 ft from the rear of the other aircraft I told the captain to stop. While I watched the right wing tip out the right window the captain proceeded with the directions of the right wing tip walker and marshaller to come straight in. I thought it was good since the wing walker was telling us to come in. This is when our wingtip scooted just underneath the APU exhaust of the falcon. The marshaller and wing walker did not even notice that our wingtip dipped 2 to 3 inches. We continued straight into parking; shut down and went outside to visually inspect both our wing tip and the falcon tailcone. Upon initial inspection; there was no visible damage to our wingtip and there was a minor cosmetic scrape on the bottom of the falcon APU exhaust cone. I then got a ladder to climb to the top of our wingtip to see if there was any damage; but none was noticed.suggest lighted wands for all ramp crew. Suggest instilling wider minimums for ground crew when marshaling. Suggest crew stopping short; shutting down and forcing ground crew to tow in. Suggest better lighting on ramp.

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Original NASA ASRS Text

Title: CL-350 First Officer reported taxiing on a dark ramp with wing walkers resulted in wingtip contact with another aircraft's tailcone.

Narrative: After landing we had a wingtip strike with another aircraft on the ramp. The conditions outside were night with moderate rain. Upon pulling into the ramp; the Captain and I both noticed how packed and dark the ramp was. We stopped short to wait for a marshaller. Once we saw a marshaller with lit wands; we proceeded onto the ramp. As we started down the alleyway we both noticed it was a very tight squeeze; so we stopped again and waited for a wing walker. One wing walker showed on the left side without wands while there was none on the right side. He signaled for us to go to the right as there was a [Citation] close on the left. As we proceeded further into the alley we approached an aircraft from the right that I thought was a little too close to continue so we stopped again. Finally a second wing walker ran across the ramp to watch our right wing tip. We proceeded at idle power towards the marshaller as he kept telling us to come straight in. The right wing walker; whom had no lit wands; was telling us to come to the left at first and then straight. As we were approximately 6 ft from the rear of the other aircraft I told the Captain to stop. While I watched the right wing tip out the right window the Captain proceeded with the directions of the right wing tip walker and marshaller to come straight in. I thought it was good since the wing walker was telling us to come in. This is when our wingtip scooted just underneath the APU exhaust of the Falcon. The marshaller and wing walker did not even notice that our wingtip dipped 2 to 3 inches. We continued straight into parking; shut down and went outside to visually inspect both our wing tip and the Falcon tailcone. Upon initial inspection; there was no visible damage to our wingtip and there was a minor cosmetic scrape on the bottom of the Falcon APU exhaust cone. I then got a ladder to climb to the top of our wingtip to see if there was any damage; but none was noticed.Suggest lighted wands for all ramp crew. Suggest instilling wider minimums for ground crew when marshaling. Suggest crew stopping short; shutting down and forcing ground crew to tow in. Suggest better lighting on ramp.

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.