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Aviation safety reports, made easier to study

NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.

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NTSB Report

January 6, 2012 · Aviat A1 B · N127AK

Somerset, CO

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
January 6, 2012
Injury Outcomes
No injuries (1 uninjured)
Location
Somerset, CO
Aircraft
Aviat A1 B
Tail Number
N127AK
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CEN12LA126

The pilot attempted a takeoff on a snow-covered runway that he had landed on earlier in the day. The snow was about 6 inches deep. During the takeoff roll, the airplane struck a snow drift and nosed over. The pilot reported no mechanical anomalies that would have precluded normal operation.

NTSB Probable Cause

The pilot's inadequate takeoff planning/preparation, which resulted in the airplane impacting a snow drift during the takeoff roll.

Full Narrative

On January 6, 2012, about 1600 mountain standard time, an Aviat Aircraft Inc A-1B, N127AK, nosed over when it struck a snow drift during takeoff roll on a snow covered runway at Abbott Ranch Private Airstrip near Somerset, Colorado. The certificated commercial pilot was uninjured. The airplane sustained substantial damage. The airplane was registered to Plane Living LLC and operated by the pilot under the provisions of 14 Code of Federal Regulations Part 91 as a personal flight. Visual meteorological conditions prevailed and a flight plan had not been filed for the flight destined for Montrose Regional Airport, Montrose, Colorado. The pilot stated that he departed Montrose Regional Airport, Montrose, Colorado, about 1330, en route to Abbott Ranch Private Airstrip to check on his cabin. He said that when he landed, the runway was covered with about 6 inches of snow. The pilot stated that at the time of departure he was attempting a maximum performance takeoff on runway 03 (1,600 feet by 75 feet, snow covered turf). The direction of takeoff was uphill. He felt the tailwheel digging into the snow on the runway shortly after the takeoff roll began. About 300 feet down the runway, the tail lifted and the main landing gear wheels struck a one foot high snow drift. The airplane then nosed over. The pilot stated in his postaccident recommendation that the accident might have been prevented by packing down the snow on the runway using a snowcat or other equipment. The airplane was equipped with Alaska Bush 29 inch tires.

Flight

Event TypeAccident
Event Time16:00 MST
Nearest AirportAbbott Ranch Private Airstrip (0nm)
Runway03
Runway Length1300 ft
Runway Width75 ft
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftAviat A1 B
Tail NumberN127AK
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O&VO-360AIP · Reciprocating · 180
Seats2

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 59 · Third Class · None

Conditions

ConditionsVMC
LightDaylight
Wind320° @ 3 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point41 C / 16 C
Altimeter30.05 inHg
Observation Time22:53
Weather SourceWFAC

Appendix: Source Data