G450 captain reported misjudging distance from wingtip to a parked aircraft and made contact during ...

Attributes
ACN	1667329
Time
Date	201907
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Gulfstream IV / G350 / G450
Operating Under FAR Part	Part 91
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine
Events
Anomaly	Deviation - Procedural Published Material / Policy Ground Event / Encounter Aircraft

Narrative:

After landing xxr we exited at taxiway. We contacted ground and they instructed us to taxi via [taxi route] into the ramp. When we made the left turn we could see a marshaler indicating for us to enter the ramp on [the next taxiway]. To the left of us on [the taxiway] there was a parked helicopter. I stayed right of centerline and was taxiing very slowly while watching the wingtip. Unfortunately I misjudged the distance between the left wingtip and the helicopter tail. The marshaler ran from his stationary position to the aircraft and indicated to stop. The left wingtip went under and butted against the right horizontal stabilizer. I stopped and shut down the engines and inspected the damage. Follow company SOP's and when a distance from a wingtip is in question just stop and request a tug.

Original NASA ASRS Text

Title: G450 Captain reported misjudging distance from wingtip to a parked aircraft and made contact during taxi.

Narrative: After landing XXR we exited at taxiway. We contacted ground and they instructed us to taxi via [taxi route] into the ramp. When we made the left turn we could see a marshaler indicating for us to enter the ramp on [the next taxiway]. To the left of us on [the taxiway] there was a parked helicopter. I stayed right of centerline and was taxiing very slowly while watching the wingtip. Unfortunately I misjudged the distance between the left wingtip and the helicopter tail. The marshaler ran from his stationary position to the aircraft and indicated to stop. The left wingtip went under and butted against the right horizontal stabilizer. I stopped and shut down the engines and inspected the damage. Follow company SOP's and when a distance from a wingtip is in question just stop and request a tug.

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.

G450 captain reported misjudging distance from wingtip to a parked aircraft and made contact during taxi.