ANC95LA146

NTSB accident investigation · Cessna 180 · Fort Yukon, AK · August 21, 1995

Accident · No injuriesLimited investigationFinal report
Date
August 20, 1995, 18:00 local (Aug 21, 1995, 02:00 UTC)
Place
Fort Yukon, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N9407CCessna 180
Weather
Visual (VMC) · Day
Status
Completed · report March 6, 1996
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19950820025439A
Case key
2724

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 selection of an unsuitable takeoff area.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

On ground/water encounter with terrain/waterTakeoff - roll/run
Terrain condition - high vegetation
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause
Loss of control - on ground/waterTakeoff - roll/run
Directional control - not possiblePilot in command
Ground loop/swerve - uncontrolledPilot in command
Gear collapsedTakeoff

Analysis

The pilot landed on a 'dry lake bed' to assist the pilot of another airplane which was mired in mud. After assisting the other pilot, the accident pilot attempted to takeoff. During the takeoff roll, the right wing of the airplane struck some tall willow bushes, and the airplane veered to the right. The airplane then began to slide left with the nose pointing to the right. The left main gear collapsed, and the left wing struck the ground.

Factual narrative

On August 20, 1995, at 1800 Alaska daylight time, a wheel equipped Cessna 180 airplane, N9407C, registered to and operated by the pilot, struck tall willow bushes with the right wing, slid sideways, and collapsed the left main gear. The pilot was attempting to takeoff from a dry lake bed located 150 miles southeast of Fort Yukon, Alaska, at geographic coordinates 66 degrees, 16.49 minutes north, and 143 degrees, 44.49 minutes west. The personal flight, operating under 14 CFR Part 91, was departing the dry lake bed and the destination was Fort Yukon. Visual meteorological conditions prevailed and a visual flight rules flight plan was filed. The private certificated pilot, the sole occupant, was not injured and the airplane sustained substantial damage.

During a telephone conversation with the pilot on August 22, 1995, he stated he was flying over the dry lake bed, when he received a distress call from a pilot of another airplane that was stuck in the mud on the dry lake bed. He landed and assisted the other pilot. After assisting the other pilot, the accident pilot attempted to takeoff. He stated that his right wing struck the tall willow bushes located next to the takeoff area. The airplane veered to the right and began sliding to the left. The left main gear collapsed and the left wing struck the ground.

Aircraft

Registration
N9407C
Reported as
Cessna 180
Category
Airplane
Serial number
31805
Airframe hours
5,821
Engine
Continental O-470-K, 230 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Richard E. Tyrrell
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 5, 1995 · 89 hours before
Destination
FYU · AK
Flight plan
VFR

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
40
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
1,515 total · 198 in this make and model · 1,478 as pilot in command · 58 in the last 90 days · 32 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 5 knots
Visibility
60 statute miles
Lowest ceiling
4,500 ft broken
Temperature
61 °F
Altimeter
30.00 inHg

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 N9407C · 2

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