SEA93LA159

NTSB accident investigation · Bucker Flugzeugbau BU-131 · Arlington, WA · July 23, 1993

Accident · No injuriesLimited investigationFinal report
Date
July 23, 1993, 15:30 local (22:30 UTC)
Place
Arlington, WA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N1XWBucker Flugzeugbau BU-131
Weather
Visual (VMC) · Day
Status
Completed · report September 13, 1994
Report
Approved by Office Director
FAA report
19930723025249A
Case key
41736

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

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Probable cause

The pilot's improper use of the brakes. The gusty, crosswind was a factor.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Main gear collapsedLanding - roll
Landing gear,main gear strut - overloadCause
Brakes(normal) - improper use ofPilot in commandFactor
Weather condition - crosswindFactor
Weather condition - gustsFactor

Analysis

After touchdown in a gusty crosswind, the pilot began hard braking in order to turn off the runway at the first taxiway. The hard braking, and the side loads exerted on the gear structure in order to maintain directional control during the rapid deceleration, resulted in collapse of the main gear strut.

Factual narrative

On July 23, 1993, at approximately 1530 Pacific daylight time (PDT), a Bucker BU-131, N1XW, experienced a gear collapse during landing roll at Arlington Municipal Airport, Arlington, Washington. The FAA certificated private pilot, who was the sole occupant of the aircraft, was not injured, but the aircraft sustained substantial damage. The local personal pleasure flight, which was being operated in visual meteorological conditions at the time of the accident, had departed the same airport about one-half hour earlier. The aircraft was not on a filed flight plan, and there was no report of an ELT activation.

The pilot said that he made a firm touchdown in about a seven to ten knot gusty crosswind, and then began hard braking in order to exit the runway at the first taxiway. As he was attempting to slow the aircraft, the gear collapsed and folded back under the airframe.

Aircraft

Registration
N1XW
Reported as
Bucker Flugzeugbau BU-131
Category
Airplane
Serial number
628
Airframe hours
964
Engine
Euzalde TIRGE G-IV, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Johnston, G. And Mcausland, R.
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · July 13, 1993 · 3 hours before
Airport
S88 · Arlington Municipal, runway 16, 5,333 × 100 ft, concrete

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
64
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Right
Flight hours
2,644 total · 324 in this make and model · 2,644 as pilot in command · 12 in the last 90 days · 12 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
260° at 7 knots, gusting 10
Visibility
20 statute miles
Lowest ceiling
3,000 ft overcast
Temperature
66 °F, dew point 52 °F

FAA reports on this event · 1

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