WPR11CA171

NTSB accident investigation · Remos GX · Arlington, WA · March 19, 2011

Accident · No injuriesData collectionFinal report
Date
March 19, 2011, 15:30 local (22:30 UTC)
Place
Arlington, WA
Injuries
3 uninjured
Phase of flight
Prior to flight
Aircraft
N386GXRemos GXN11NLGould Rutan
Defining events
Prior to flight: Ground collisionPrior to flight: Ground collision
Weather
Visual (VMC) · Day
Status
Completed · report July 18, 2011
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
FAA FSDO
FAA report
20110319005271A
Case key
78591

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The LSA pilots' failure to stop and to ensure that the taxiway was clear of conflicting traffic before entering.

Findings · 5

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

N386GX · Remos GX

Object/animal/substance: aircraftEnvironmental issues › Physical environment · Response/compensationAll aircraft: 116 casesProbable cause
Action: lack of actionPersonnel issues › Action/decision · Pilot of other aircraftAll aircraft: 792 casesProbable cause

N11NL · Gould Rutan

Object/animal/substance: aircraftEnvironmental issues › Physical environment · Response/compensationGould Leland E LONG EZ: 1 caseAll aircraft: 116 casesProbable cause
Action: lack of actionPersonnel issues › Action/decision · PilotGould Leland E LONG EZ: 1 caseAll aircraft: 792 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The experimental Long EZ was taxiing on taxiway A for a planned departure from the non-towered airport. About the same time, a light sport airplane (LSA) was taxiing out of a ramp area on a stub taxiway, towards taxiway A, for a planned departure. According to the Long EZ pilot, he saw the LSA approach from the right and then turned right onto taxiway A. He steered his airplane to the left side of the taxiway in an attempt to avoid the LSA. According to both persons on board the LSA, as they approached the taxiway, they looked to the right and left, and then proceeded onto taxiway A via a right turn. Shortly after the LSA joined the taxiway centerline, the Long EZ's right vertical stabilizer struck the LSA's left aileron. The LSA's rotating propeller struck the right canard of the Long EZ. The airplanes came to a stop near the edge of taxiway A, about 75 feet beyond the center of the stub taxiway. A chain link fence near the taxiway limited the pilots' ability to see one another until they were close to the taxiway intersection. However, none of the pilots involved reported that the LSA stopped before it turned onto taxiway A. Subsequent to the accident, the fixed base operator modified their standard operating procedures to require pilots to stop prior to entering taxiway A.

Factual narrative

The experimental, amateur-built Long EZ, operated by the commercially-certificated pilot/builder/owner, was taxiing northbound on taxiway Alpha, for its departure from the non-towered airport. About the same time, the high-wing special light sport airplane (LSA), with a light sport certificated pilot in the left seat and a certificated flight instructor in the right seat, was taxiing west out of the fixed base operator's ramp area on a stub taxiway, towards taxiway Alpha, for its departure. Both taxiways were about 50 feet wide. According to the Long EZ pilot, he observed the LSA approach from his right, and then turn northbound onto taxiway Alpha. He steered his airplane to the left side of the taxiway in an attempt to avoid the LSA. According to both persons on board the LSA, as they approached the Alpha taxiway, they looked to the right and left, and then proceeded onto taxiway Alpha via a right (northbound) turn. Shortly after the LSA joined the centerline of Alpha northbound, the Long EZ's right vertical stabilizer struck the LSA's left aileron. The Long EZ began to pivot to the right (clockwise), and both airplanes veered towards the right (east) side of the taxiway. The LSA's rotating propeller then struck the right canard of the Long EZ. The airplanes came to a stop near the right (east) edge of taxiway Alpha, about 75 feet beyond the center of the stub taxiway. The skid mark from the Long EZ left main tire began about 12 feet from the left edge of Alpha, and continued 59 feet in a curve, to where the airplane stopped. Day visual meteorological conditions prevailed, and visibility was about 10 miles. Both airplanes were based at the airport, and both were primarily white in color. A chain link fence about 6 feet high, set back about 50 feet from the south side of the stub taxiway and the east side of Alpha, limited the pilots' ability to see one another until they were close to the taxiway intersection. However, none of the three pilots involved reported that the LSA stopped before it turned onto the Alpha taxiway. Subsequent to the accident, the fixed base operator modified their standard operating procedures to require pilots to stop prior to entering taxiway Alpha.

Aircraft · 2

Registration
N386GX
Reported as
Remos GX
Category
Airplane
Serial number
309
Airframe hours
271
Engine
Rotax 912ULS, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Airworthiness certificate
Special, Special light-sport (Special)
Last inspection
Condition · March 7, 2011
Departed
AWO · Arlington, WA
Destination
RNT · Renton, WA
Airport
AWO · Arlington Municipal
Registration
N11NL
Reported as
Gould Rutan (Long EZ)
Category
Airplane, amateur-built
Serial number
1108
Airframe hours
475
Engine
Lycoming IO-320, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · September 20, 2010
Departed
AWO · Arlington, WA
Destination
AWO · Arlington, WA
Flight plan
Unknown
Airport
AWO · Arlington Municipal

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew · 3

As NTSB recorded them. NTSB leaves out names.

Role
Pilot, aircraft N386GX
Age
53
Injuries
None
Certificate
Sport Pilot
Airplane ratings
Single-engine land
Medical
Sport pilot
Last flight review
November 6, 2010
Seat
Left
Flight hours
167 total · 110 in this make and model · 54 as pilot in command · 16 in the last 90 days · 12 in the last 30 days · 1 in the last 24 hours
Role
Flight instructor, aircraft N386GX
Age
63
Injuries
None
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
March 3, 2010
Seat
Right
Flight hours
2,925 total · 131 in this make and model · 2,832 as pilot in command · 56 in the last 90 days · 20 in the last 30 days · 5 in the last 24 hours
Role
Pilot, aircraft N11NL
Age
75
Injuries
None
Certificates
Military, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
August 20, 2009
Seat
Front
Flight hours
10,000 total · 475 in this make and model · 5,000 as pilot in command · 4 in the last 90 days · 1 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
210° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
52 °F, dew point 32 °F
Altimeter
29.73 inHg
Observed at
PAE, 15 nm away

Docket · 7

The files NTSB released with the investigation on April 21, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 6.5 MB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.