ERA17CA008

NTSB accident investigation · Algimantas Jonusas RV-10 · Ashwood, VA · October 7, 2016

Accident · Serious injuriesData collectionFinal report
Date
October 7, 2016, 13:43 local (17:43 UTC)
Place
Ashwood, VA
Injuries
2 serious
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N100UKAlgimantas Jonusas RV-10
Defining event
Enroute: VFR encounter with IMC
Weather
Instrument (IMC) · Day
Status
Completed · report August 22, 2017
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA / FSDO
FAA report
20161007013609A
Case key
94171

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 noninstrument-rated pilot's inadequate preflight and in-flight weather planning and continued flight into instrument meteorological conditions, which resulted in impact with trees and terrain.

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.

Ceiling/visibility/precip: below VFR minimaEnvironmental issues › Conditions/weather/phenomena · Decision related to conditionAlgimantas Jonusas RV-10: 1 caseAll aircraft: 184 casesProbable cause
Ceiling/visibility/precip: below VFR minimaEnvironmental issues › Conditions/weather/phenomena · Effect on operationAlgimantas Jonusas RV-10: 1 caseAll aircraft: 184 casesProbable cause
Object/animal/substance: tree(s)Environmental issues › Physical environment · Contributed to outcomeAlgimantas Jonusas RV-10: 1 caseAll aircraft: 933 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 noninstrument-rated private pilot obtained weather information from an on-line flight planning website. Before departure, he also telephoned his destination airport and "determined the weather was all OK." He then took off and climbed to 5,500 ft mean sea level for the cruise portion of his flight. He advised that he also checked and monitored weather while en route but that the "fog and clouds came down really thick," so he decided to divert to the nearest airport. While flying toward his diversion airport, the visibility deteriorated and a "TERRAIN ALERT" warning illuminated on his GPS display. He attempted to pull up twice but impacted trees and terrain on the side of a mountain. The pilot and passenger were seriously injured during the impact, and the airplane was substantially damaged. The pilot reported that there were no preimpact mechanical failures or malfunctions of the airframe or engine that would have precluded normal operation. Review of weather observations indicated that an extensive area of low clouds and a large area of marginal visual flight rules (MVFR) conditions existed over the pilot's planned route. Low instrument flight rules (IFR) conditions prevailed at the diversion airport and near the accident site with visibility less than 1/4 mile in heavy rain and overcast ceilings at 100 ft. The MVFR-to-IFR weather conditions had been forecast, and AIRMETs warning of IFR and mountain obscuration conditions had been issued.

Factual narrative

The non-instrument rated private pilot obtained weather information from an online flight planning website. Prior to departure he also telephoned his destination airport and "determined the weather was all OK." He then took off and climbed to 5,500 feet above mean sea level for the cruise portion of his flight. He advised that he also checked and monitored weather while enroute, but the "fog and clouds came down really thick," so he decided to divert to the nearest airport. While flying towards his diversion airport, the visibility deteriorated and a "TERRAIN ALERT" warning illuminated on his GPS display. He attempted to pull up twice, but impacted trees and terrain on the side of a mountain. The pilot and passenger were seriously injured during the impact and the airplane was substantially damaged. The pilot reported that there were no preimpact mechanical failures or malfunctions of the airframe or engine that would have precluded normal operation.Review of weather observations indicated an extensive area of low clouds, and a large area of marginal visual flight rules (MVFR) conditions existed over the pilot's planned route. Low instrument flight rules (IFR) conditions prevailed at the diversion airport and in the vicinity of the accident site, with visibility less than 1/4-mile in heavy rain and overcast ceilings at 100 ft. The MVFR to IFR weather conditions had been forecast, and AIRMETs warning of IFR and mountain obscuration conditions had been issued.

Aircraft

Registration
N100UK
Reported as
Algimantas Jonusas RV-10
Category
Airplane, amateur-built
Serial number
41224
Built
2012
Airframe hours
199
Engine
Lycoming IO-540-D4A5, 270 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · March 8, 2016
Departed
JVY · Jeffersonville, IN
Destination
W29 · Stevensville, MD
Flight plan
VFR
Airport
HSP · Ingalls Field
Equipment
Electronic primary flight display, Angle of attack indicator, Auto-pilot, Electronic multifunction display

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
Serious
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 2, With waivers/limitations
Last flight review
July 29, 2016
Seat
Left
Restraint
3-point
Flight hours
695 total · 199 in this make and model · 645 as pilot in command · 9.5 in the last 90 days · 7.8 in the last 30 days

Weather

Conditions
Instrument (IMC) · Day
Wind
100° at 6 knots
Visibility
0.3 statute miles
Lowest ceiling
100 ft overcast
Temperature
48 °F, dew point 48 °F
Altimeter
30.22 inHg
Observed at
KHSP, 3 nm away

Docket · 6

The files NTSB released with the investigation on August 2, 2017, on NTSB’s docket system: statements, records, photos and specialists’ reports. 6.4 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.