ANC09LA019

NTSB accident investigation · Construcciones Aeronauticas C-212-CC · Kotzebue, AK · February 14, 2009

Accident · No injuriesLimited investigationFinal report
Date
February 14, 2009, 11:02 local (15:02 UTC)
Place
Kotzebue, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N440RAConstrucciones Aeronauticas C-212-CC
Defining event
Approach-VFR pattern final: Controlled flight into terr/obj (CFIT)
Weather
Instrument (IMC) · Day
Status
Completed · report May 12, 2009
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA
FAA report
20090214025049A
Case key
73352

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 flight crew's decision to continue flight into adverse weather. Contributing to the accident was blowing snow which limited their visibility during final approach to land.

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.

Personnel issuesPersonnel issues › Action/decision · Flight crewConstrucciones Aeronauticas C-212-CC: 1 caseAll aircraft: 56 casesProbable cause
Ceiling/visibility/precip: snowEnvironmental issues › Conditions/weather/phenomena · Decision related to conditionConstrucciones Aeronauticas C-212-CC: 1 caseAll aircraft: 43 casesProbable cause
Physical workspace: visibilityEnvironmental issues › Task environment · Effect on personnelConstrucciones Aeronauticas C-212-CC: 1 caseAll aircraft: 25 casesProbable cause
Ceiling/visibility/precip: snowEnvironmental issues › Conditions/weather/phenomena · Effect on operationConstrucciones Aeronauticas C-212-CC: 1 caseAll aircraft: 43 casesProbable cause

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 airline transport certificated captain and commercial certificated first officer were on a non-scheduled domestic cargo flight. The captain stated that while en route to the destination airport, the weather at the airport dropped below visual flight rules (VFR) minimums, and he received a special VFR clearance. He said that the local area and runway were covered with snow, but when he turned final he could see the airport beacon and associated buildings. He said about 200 feet above the ground on approach he lost sight of the runway environment, and asked the first officer if he could see anything. When the first officer said no, and reported their altitude at 50 feet agl, the captain said he initiated a go-around, but the airplane impacted the terrain short of the runway. The captain reported that there were no known mechanical problems with the airplane or its instruments prior to the accident. The Director of Operations for the operator said the airplane sustained structural damage to the fuselage near the left main landing gear. An Federal Aviation Administration flight service specialist at the airport said the visibility had been about 1-1/4 miles, but dropped to 1/4-mile rapidly during the time of the approach. Weather observations taken at the airport showed that about 3 minutes before the accident, the visibility was 1 mile in light snow and blowing snow, wind as 160 degrees at 28 knots gusting to 32. About 1 minute before the accident, the visibility was reported as 1/4-mile in light snow and blowing snow, wind from 160 degrees at 33 knots gusting to 36. About 3 minutes after the accident, the visibility remained at 1/4-mile in light snow and blowing snow, and the wind was reported as 170 degrees at 35 knots with gusts to 42.

Factual narrative

On February 14, about 1102 Alaska standard time, a CASA 212 twin-engine airplane, N440RA, sustained substantial damage when it collided with terrain about one-half mile west of the Ralph Wien Memorial Airport, Kotzebue, Alaska. The airplane was being operated by Arctic Transportation Services, Anchorage, Alaska, as a visual flight rules (VFR) cargo flight under Title 14, CFR Part 135, when the accident occurred. The airline transport pilot and co-pilot were not injured. Instrument meteorological conditions prevailed at the airport, and a special VFR clearance had been obtained by the flight crew. During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) on February 17, the pilot said he flew a normal VFR left-hand traffic pattern. He said that the area and runway were covered with snow, but when he turned final he could see the airport beacon and associated buildings. He said as he continued the approach, the co-pilot called an altitude of 200 feet, and as he did so, the wind appeared to shift abruptly. The pilot said he lost sight of the airport, and asked the co-pilot if he could see the airport. When the co-pilot said no, and reported their altitude as 50 feet above ground level, the pilot said he initiated a go-around, but the airplane impacted terrain short of the runway. The pilot said there were no known mechanical problems with the airplane or its instruments prior to the accident. He also said he and the co-pilot were instrument current, and the airplane was properly certified for instrument flight. The Director of Operations for the operator said the airplane sustained structural damage to the fuselage near the left main landing gear. An FAA flight service specialist at the airport said the visibility had been about 1 1/4 miles, but dropped to 1/4 mile rapidly during the time of the approach. According to official weather observations taken by the weather observer at Kotzebue, at 59 minutes before the hour the visibility was 1 mile in light snow and blowing snow, wind was 160 degrees at 28 knots gusting to 32. At 1 minute after the hour the visibility was reported as 1/4 mile in light snow and blowing snow, wind from 160 degrees at 33 knots gusting to 36. At 5 minutes past the hour the visibility remained at 1/4 mile in light snow and blowing snow, and the wind was reported as 170 degrees at 35 knots with gusts to 42.

Aircraft

Registration
N440RA
Reported as
Construcciones Aeronauticas C-212-CC
Category
Airplane
Serial number
174
Airframe hours
29,161
Engines
Honeywell TPE-331-10R-5, 900 horsepower, turbo propHoneywell TPE-331-10R-5, 900 horsepower, turbo prop
Damage
Substantial damage
Flight
Part 135
Operator
Arctic Transportation Services Inc, doing business as Arctic Transportation Services
Registered owner
Arctic Transportation Services Inc
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · January 21, 2009
Departed
PAIK · Kiana, AK
Destination
PAQT · Kotzebue
Flight plan
Company VFR
Airport
PAQT · Kotzebue

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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
27
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
January 19, 2009
Seat
Left
Flight hours
6,377 total · 4,020 in this make and model · 3,910 as pilot in command · 227 in the last 90 days · 59 in the last 30 days · 2 in the last 24 hours
Role
Co-pilot
Injuries
None
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
April 29, 2008
Seat
Right
Flight hours
1,229 total · 862 in this make and model · 228 as pilot in command · 138 in the last 90 days · 32 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Day
Wind
160° at 28 knots, gusting 32
Visibility
0.25 statute miles
Lowest ceiling
4,900 ft broken
Temperature
27 °F, dew point 25 °F
Altimeter
29.60 inHg
Observed at
PAQT

Docket · 3

The files NTSB released with the investigation on March 24, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.2 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.