ANC23LA082

NTSB accident investigation · Helio H-295 · Fairbanks, AK · September 17, 2023

Accident · No injuriesClass 4 · LimitedFinal report
Date
September 16, 2023, 17:35 local (Sep 17, 2023, 01:35 UTC)
Place
Fairbanks, AK
Injuries
4 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N713CHelio H-295
Defining event
Initial climb: Windshear or thunderstorm
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Alaska Regional Office
Parties
FAA/FSDO
FAA report
20230916011269A
Case key
193105

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 pilot’s encounter with windshear during initial climb out, which resulted in a loss of control.

Findings · 4

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.

Performance/control parameters: climb rateAircraft › Aircraft oper/perf/capability · Not attained/maintainedHelio H-295: 2 casesAll aircraft: 265 cases
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotHelio H-295: 6 casesAll aircraft: 9,295 casesProbable cause
Wind: windshearEnvironmental issues › Conditions/weather/phenomena · Effect on equipmentHelio H-295: 1 caseAll aircraft: 90 casesProbable cause
Wind: tailwindEnvironmental issues › Conditions/weather/phenomena · Effect on equipmentHelio H-295: 2 casesAll aircraft: 594 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 reported that during takeoff from a remote site surrounded by trees, he encountered windshear and a gusting tailwind during the initial climb. He said that once the airplane climbed above tree level, the airplane stopped climbing, lost altitude, and then struck a stand of trees at the departure end of the site, resulting in substantial damage to the wings and empennage. The pilot reported that there were no pre-accident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Aircraft

Registration
N713C
Reported as
Helio H-295
Category
Airplane
Serial number
1438
Built
1970
Airframe hours
13,334.3
Engine
Lycoming GO-480-G2D6, 285 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 135
Operator
Wright Air Service Inc
Registered owner
Wright Air Service Inc
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · September 1, 2023
Destination
Fairbanks (Nome Creek), AK
Flight plan
VFR/IFR
Equipment
Satellite tracking device, Handheld GPS, ADS-B

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
47
Injuries
None
Certificate
Airline transport
Airplane ratings
Single-engine land, Single-engine sea, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
August 13, 2023
Seat
Left
Flight hours
10,200 total · 1,500 in this make and model · 10,200 as pilot in command · 264 in the last 90 days · 102 in the last 30 days · 7 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
90° at 9 knots
Visibility
10 statute miles
Lowest ceiling
10,000 ft broken
Temperature
57 °F, dew point 32 °F
Altimeter
29.06 inHg
Observed at
AEI, 29 nm away
METAR
PAEI 170055Z AUTO 09009KT 10SM FEW070 BKN100 14/00 A2906 RMK AO2 SLP846 T01410003 $

Docket · 2

The files NTSB released with the investigation on April 4, 2024, on NTSB’s docket system: statements, records, photos and specialists’ reports. 7.6 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 N713C · 1

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