ANC09LA058

NTSB accident investigation · Cessna 207 · Crooked Creek, AK · June 17, 2009

Accident · Minor injuriesLimited investigationFinal report
Date
June 16, 2009, 16:20 local (Jun 17, 2009, 00:20 UTC)
Place
Crooked Creek, AK
Injuries
1 minor, 2 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N1623UCessna 207
Defining event
Maneuvering: Loss of engine power (total)
Weather
Visual (VMC) · Day
Status
Completed · report May 11, 2010
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
Federal Aviation Administration (Airworthiness)
FAA report
20090616047359A
Case key
74070

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

A total loss of engine power for an undetermined reason.

Findings · 3

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.

Not determinedNot determined › Not determined · Unknown/Not determinedCessna 207: 2 casesAll aircraft: 2,247 casesProbable cause
Terrain: rough terrainEnvironmental issues › Physical environment · Contributed to outcomeCessna 207: 2 casesAll aircraft: 442 cases
Power plantAircraft › Aircraft power plant · InoperativeCessna 207: 1 caseAll aircraft: 198 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 commercial pilot was on a Title 14, CFR Part 91, other work use flight when the accident occurred. As he approached his destination airport, he said he saw a large rain squall moving over the airport, and he elected to remain south of the airport to allow time for it to move. He reported that while maneuvering the airplane at 1,000 feet msl, all engine power was lost. Unable to restore engine power, the pilot selected a marshy tree-covered area as a forced landing site. The airplane sustained substantial damage to the fuselage during the forced landing. The NTSB discovered no mechanical problems with the engine during a postaccident teardown and examination.

Factual narrative

On June 16, 2009, about 1620 Alaska daylight time, a Cessna 207 airplane, N1623U, sustained substantial damage during a forced landing about 2 miles south of the Crooked Creek Airport, Crooked Creek, Alaska. The airplane was being operated by Bush-Tell, Inc., Aniak, Alaska, as a visual flight rules (VFR) other work use flight under Title 14, CFR Part 91, when the accident occurred. Of the three people aboard, the commercial pilot and one passenger were not injured, and one passenger sustained minor injuries. The flight originated at the Sleetmute Airport, Sleetmute, Alaska, about 1530, and company flight following procedures were in effect. During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) on June 17, the pilot noted that the purpose of the flight was to transport a crew of telecommunications technicians from Aniak to Sleetmute, then continue on to Crooked Creek before returning to Aniak later that evening. He said that the flight between Aniak and Sleetmute was uneventful, but noted that he had some difficulty starting the airplane’s engine before departing Sleetmute. He said that once the engine started, it operated without difficulty, and he departed for Crooked Creek. As the flight approached the Crooked Creek Airport, the pilot said he saw a large rain squall moving over the airport, and he elected to remain south of the airport to allow time for the rain squall to move away from the airport. He reported that while maneuvering the airplane at 1,000 feet msl, all engine power was lost. After completing the emergency procedures for a loss of engine power, the pilot said he was unable to restart the engine, and he selected a marshy tree-covered site as a forced landing area. During the forced landing, the airplane collided with trees, and sustained substantial damage to the fuselage and wings. The airplane was equipped with a Teledyne Continental Motors (TCM) IO-520 series engine. On July 27, 2009, at the direction and under the supervision of the NTSB IIC, an engine teardown and inspection was accomplished at B.J. Custom Aircraft Engines, Inc., Palmer, Alaska. The engine inspection revealed no preaccident mechanical anomalies.

Aircraft

Registration
N1623U
Reported as
Cessna 207
Category
Airplane
Serial number
20700223
Airframe hours
9,089
Engine
Cont Motor IO 520 SERIES, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Other work use · Part 91
Operator
Bush-Tell Inc
Registered owner
Bush-Tell Inc
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 13, 2008 · 105 hours before
Departed
SLQ · Sleetmute, AK
Destination
CJX · Crooked Creek, AK
Flight plan
Company VFR
Airport
CJX · Crooked Creek Airport

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
56
Injuries
None
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 3, Without waivers/limitations
Seat
Left
Flight hours
1,388 total · 486 in this make and model · 81 in the last 90 days · 47 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Visibility
10 statute miles
Lowest ceiling
None
Temperature
64 °F
Altimeter
29.65 inHg

Docket · 1

The files NTSB released with the investigation on March 29, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 811 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 N1623U · 1

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