ERA14CA262

NTSB accident investigation · Evolution Trikes Revo · Williamsburg, VA · May 25, 2014

Accident · Minor injuriesData collectionFinal report
Date
May 24, 2014, 20:21 local (May 25, 2014, 00:21 UTC)
Place
Williamsburg, VA
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N9912SEvolution Trikes Revo
Defining event
Maneuvering-low-alt flying: Aerodynamic stall/spin
Weather
Visual (VMC) · Dusk
Status
Completed · report July 30, 2014
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
FAA report
20140524006889A
Case key
89288

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 failure to maintain airspeed while maneuvering at low altitude, which resulted in an aerodynamic stall and impact with water.

Findings · 3

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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotEvolution Trikes REVO: 4 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: airspeedAircraft › Aircraft oper/perf/capability · Not attained/maintainedEvolution Trikes REVO: 1 caseAll aircraft: 1,681 casesProbable cause
Terrain: waterEnvironmental issues › Physical environment · Contributed to outcomeEvolution Trikes REVO: 1 caseAll aircraft: 97 cases

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 pilot stated that he was flying the weight-shift control aircraft over a river while the passenger took photos. As he slowed and descended the aircraft near a bird's nest in order for the passenger to capture a photo, the aircraft entered an aerodynamic stall. The pilot applied full engine power to recover, but the aircraft continued to sink before impacting the river, resulting in substantial damage. The pilot and passenger subsequently egressed and swam to the shore. The pilot stated that there were no mechanical malfunctions or anomalies of the aircraft or engine that would have precluded normal operation of the airplane.

Factual narrative

The pilot stated that he was flying the weight-shift control aircraft over a river while the passenger took photos. As he slowed and descended the aircraft near a bird's nest in order for the passenger to capture a photo, the aircraft entered an aerodynamic stall. The pilot applied full engine power to recover, but the aircraft continued to sink before impacting the river, resulting in substantial damage. The pilot and passenger subsequently egressed and swam to the shore. The pilot stated that there were no mechanical malfunctions or anomalies of the aircraft or engine that would have precluded normal operation of the airplane.

Aircraft

Registration
N9912S
Reported as
Evolution Trikes Revo
Category
Airplane
Serial number
2
Built
2011
Airframe hours
507
Engine
Rotax 912, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Williams John D
Registered owner
Williams John D
Airworthiness certificate
Special, Special light-sport (Special)
Departed
JGG · Williamsburg, VA
Destination
JGG · Williamsburg, VA

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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
61
Injuries
Minor
Certificates
Sport Pilot, Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Sport pilot, With waivers/limitations
Seat
Center
Restraint
Lap only
Flight hours
1,750 total · 895 in this make and model

Weather

Conditions
Visual (VMC) · Dusk
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
68 °F, dew point 57 °F
Altimeter
30.09 inHg
Observed at
JGG

Docket · 2

The files NTSB released with the investigation on June 16, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.4 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.

Other investigations on N9912S · 1

Matched to the same aircraft by N-number and date.