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NTSB Report
September 21, 2024 · Cessna 172S · N513WF
Seattle, WA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
September 21, 2024
Injury Outcomes
No injuries (5 uninjured)
Location
Seattle, WA
Aircraft
Cessna 172S (2004)
Tail Number
N513WF
Operator
Galvin Flying
Injuries
None
Aircraft Damage
Substantial
NTSB Number
WPR24LA318
The ground collision occurred as one airplane (Cessna 172) was situated in the runup area, and another airplane (Gulfstream G280) was taxiing to a fixed based operator (FBO). The Gulfstream had landed and passed the turn for the FBO and was instructed by the ground controller to turn 180° and taxi to the FBO. The pilots of both airplanes were aware of each other and confirmed they had each other in sight. As the Gulfstream taxied past the Cessna, the right wing of the Gulfstream struck the left wing of the Cessna, which resulted in substantial damage to the left wing and aileron. The Gulfstream sustained minor damage to the right winglet leading edge. Both pilots reported that there were no preaccident mechanical malfunctions or failures with the airplanes that would have precluded normal operation.
NTSB Probable Cause
The Gulfstream pilot’s failure to maintain clearance from the Cessna while taxiing that resulted in a ground collision.
Full Narrative
The ground collision occurred as one airplane (Cessna 172) was situated in the runup area, and another airplane (Gulfstream G280) was taxiing to a fixed based operator (FBO). The Gulfstream had landed and passed the turn for the FBO and was instructed by the ground controller to turn 180° and taxi to the FBO. The pilots of both airplanes were aware of each other and confirmed they had each other in sight. As the Gulfstream taxied past the Cessna, the right wing of the Gulfstream struck the left wing of the Cessna, which resulted in substantial damage to the left wing and aileron. The Gulfstream sustained minor damage to the right winglet leading edge. Both pilots reported that there were no preaccident mechanical malfunctions or failures with the airplanes that would have precluded normal operation.
Flight
Event TypeAccident
Event Time20:23 PDT
Nearest AirportBoeing Fld/King County Intl (0.6nm E)
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 172S
Tail NumberN513WF
Aircraft CategoryAir
DamageSubstantial
OperatorGalvin Flying
Operating RulePart 91
Engines1
Engine TypeTurbofan
Engine DetailsHoneywell · AS907-2-1G · Turbofan · 7765 | Lycoming · IO-360-L2A · Reciprocating · 180 | Honeywell · AS907-2-1G · Turbofan · 7765
Seats4
People & Injuries
Injury SummaryNo injuries (5 uninjured)
Fatal0
Serious0
Minor0
Uninjured5
Total5
Crew 1Age 31 · First Class · None
Crew 2Age 51 · First Class · None
Crew 3Age 40 · First Class · None
Conditions
ConditionsVMC
LightNight
WindCalm
Visibility10 sm
CeilingNone
Temperature / Dew Point61 F / 48 F
Altimeter30.19 inHg
Observation Time20:53
Weather SourceWFAC