FLIGHT FINDINGSAVIATION OCCURRENCE MAP
Back to map

WPR18LA109 · Lyons Robert NAVAJO HKS

11 Mar 2018 · Arlington, WA, United States

Lyons Robert NAVAJO HKS · Accident: loss of control on ground during landing

From Camano Island Airfield (13W) to Arlington Municipal Airport (AWO)

Report a problem

Event

NTSB case
WPR18LA109
Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
Completed
API-reported fatalities
0 · all aircraft and ground
Ground fatalities
Unknown
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
General aviation
WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
Visual Meteorological Cond

Lyons Robert NAVAJO HKS

Category
Weight-Shift
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N1762C
Onboard fatalities
Unknown
Route
From Camano Island Airfield (13W), Stanwood, WATo Arlington Municipal Airport (AWO), Arlington, WA
Aircraft age
About 11 years (built 2007)
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 91: General Aviation
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
Landing · landing roll
Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
Loss of control on ground
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Substantial

Cause areas

  • Personnel issues › Task performance

Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.

NTSB narrative

The pilot was landing the weight-shift-control aircraft. Onboard video indicated that the aircraft was about 100 ft above ground level as it passed the runway midpoint and subsequently touched down with about 630 ft of runway remaining. The aircraft landed on the left side of the runway centerline then veered to the right and nosed over on the right side of the runway. The aircraft was equipped with two hydraulic disc brakes located on each of the main landing gear, which activated simultaneously by means of a foot pedal. The pilot performed an examination of the brakes after the accident and reported that the right wheel brake "had more stopping power" than the left wheel brake and attributed the loss of control to the braking power discrepancy between the two main wheels. He also stated that his long landing resulted in his application of heavier braking than usual. It is likely that the pilot's decision to continue the approach and landing despite the short runway distance remaining, and his subsequent use of heavy braking to stop on the available runway exacerbated the uneven braking effectiveness and contributed to the loss of control.

Probable cause

The pilot's loss of directional control during landing. Contributing to the accident was the pilot's failure to attain a proper touchdown point, which required his use of heavy braking to stop on the remaining runway and exacerbated the uneven braking effectiveness of the main wheels.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record WPR18LA109
Event ID
20180322X11928
Case number
WPR18LA109
Dataset
full-current
Source SHA-256
5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
  • Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
  • Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
  • The date is the local date, which is the same as the UTC date the NTSB stores.
  • API snapshot SHA-256: 2c6fcc4ad8e0e6396333934d2608d1187988d8366399e162c3317249172128b8; retrieved 2026-09-16T06:41:15.892Z.