ANC13CA042

NTSB accident investigation · Cessna 207A · Newtok, AK · May 4, 2013

Accident · Minor injuriesData collectionFinal report
Date
May 4, 2013, 13:40 local (21:40 UTC)
Place
Newtok, AK
Injuries
4 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N9400MCessna 207A
Defining event
Approach-VFR go-around: Controlled flight into terr/obj (CFIT)
Weather
Visual (VMC) · Day
Status
Completed · report July 29, 2013
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
Federal Aviation Administration
FAA report
20130504007189A
Case key
86836

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 continued flight into adverse weather and his failure to maintain clearance from terrain while on approach in flat light conditions. Contributing to the accident was the pilot's delayed decision to initiate a go-around.

Findings · 6

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: altitudeAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna 207A: 2 casesAll aircraft: 1,310 casesProbable cause
Light condition: flat lightEnvironmental issues › Conditions/weather/phenomena · Contributed to outcomeCessna 207A: 1 caseAll aircraft: 42 cases
Ceiling/visibility/precip: fogEnvironmental issues › Conditions/weather/phenomena · Contributed to outcomeCessna 207A: 1 caseAll aircraft: 78 cases
Action: delayed actionPersonnel issues › Action/decision · PilotCessna 207A: 2 casesAll aircraft: 894 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 pilot of a scheduled commuter flight reported that he was about 4 miles north of the destination airport and operating in VFR weather conditions. According to the operator, as the flight approached the airport, the visibility was reduced due to fog. The pilot then initiated a gradual descent over an area of featureless, snow-covered terrain, which made it difficult to discern any topographical terrain features due to flat light conditions. The operator reported that the pilot could see his destination airport in the distance but that, during the descent, he became “uncomfortable” with the approach, and he initiated a go-around. The airplane subsequently collided with a snow-covered frozen river, about 1 mile from the approach end of the airport, sustaining substantial damage to the wings and fuselage. The pilot reported that there were no preaccident mechanical problems with the airplane. One of the passengers aboard the accident airplane wrote, in part, “I looked out the window to my right to see if I could see the airport and did not, it was too foggy.” The operator reported that the accident flight was the pilot’s second attempt to reach the destination airport that day. During the previous flight that morning, poor weather conditions prevailed, so the pilot returned to his departure airport to wait for weather conditions to improve.

Factual narrative

The pilot of a scheduled commuter flight reported that he was about 4 miles north of the destination airport, operating in VFR weather conditions. According to the operator, as the flight approached the airport, the visibility was reduced due to fog. The pilot then initiated a gradual descent over an area of featureless, snow-covered terrain, which made it difficult to discern any topographical terrain features due to flat light conditions. In the operator’s written statement to the NTSB, it was reported that the pilot could see his destination airport in the distance, but during the descent he became “uncomfortable” with the approach, and he initiated a go-around. The airplane subsequently collided with a snow-covered frozen river, about 1 mile from the approach end of the airport, sustaining substantial damage to the wings and fuselage. The pilot reported that there were no preaccident mechanical problems with the airplane. In a written statement provided by one of the passengers aboard the accident airplane, she wrote, in part: “…I looked out the window to my right to see if I could see the airport and did not, it was too foggy.” The operator reported that the accident flight was the pilot’s second attempt to reach the destination airport that day. During the previous flight that morning poor weather conditions prevailed, so the pilot returned to his departure airport to wait for weather conditions to improve.

Aircraft

Registration
N9400M
Reported as
Cessna 207A
Category
Airplane
Serial number
20700687
Airframe hours
24,472
Engine
Cont Motor IO-520-F, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Operator
Hageland Aviation, doing business as Era Alaska
Registered owner
Icecap LLC Trustee
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · April 20, 2013
Departed
PABE · Bethel, AK
Destination
PAEW · Newtok, AK
Flight plan
Company VFR
Airport
PAEW · Newtok, runway 33, 2,202 × 35 ft, gravel

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
30
Injuries
Minor
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Seat
Left
Flight hours
2,001 total · 533 in this make and model · 1,728 as pilot in command · 167 in the last 90 days · 13 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
150° at 6 knots
Visibility
10 statute miles
Lowest ceiling
1,600 ft overcast
Temperature
39 °F, dew point 43 °F
Altimeter
30.23 inHg
Observed at
PAOO, 28 nm away

Docket · 2

The files NTSB released with the investigation on June 5, 2013, on NTSB’s docket system: statements, records, photos and specialists’ reports. 799 KB 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 N9400M · 1

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