ANC95LA022

NTSB accident investigation · Cessna 140 · Tok, AK · December 26, 1994

Accident · No injuriesLimited investigationFinal report
Date
December 26, 1994, 11:30 local (15:30 UTC)
Place
Tok, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N89870Cessna 140
Weather
Visual (VMC) · Day
Status
Completed · report August 23, 1995
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19941226042159A
Case key
2619

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 attempt to fly into known adverse weather. A factor related to the accident was the icing conditions.

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.

In flight collision with terrain/waterLanding
Weather condition - icing conditionsFactor
Flight into known adverse weather - attemptedPilot in commandCause
Nose overLanding - roll

Analysis

The airplane was observed by a ground observer flying in and out of clouds. The ground observer last saw the airplane turning toward the Tok airport with a 'high angle of bank and sinking toward the ground.' The airplane nosed over into a snow bank on the airport. Examination of the airplane revealed 1/8 inch of rime ice covering all the leading edges. The airplane weighed an estimated 156 pounds over the certificated maximum gross weight.

Factual narrative

On December 26, 1994, at 1130 Alaska standard time, a wheel equipped Cessna 140 airplane, N89870, registered to William N. Sigler of Little Campbell Creek, Alaska, and operated by the pilot, crashed during landing at Tok, Alaska. The personal flight, operating under 14 CFR Part 91, last departed Tok and was flying toward the Canadian Border. The airplane returned to Tok due to weather. No flight plan was filed and visual meteorological conditions prevailed. The commercial certificated pilot and the passenger were not injured and the airplane was substantially damaged.

According to Ron Sakalaskas, who was driving on the highway toward Tok, he saw the airplane flying low and enter the clouds. Mr. Sakalaskas turned his vehicle around and followed the airplane. He saw the airplane fly in and out of clouds numerous times. He last saw the airplane "turning with a high angle of bank and sinking." When Mr. Sakalaskas arrived at the Tok Airport he saw the airplane upside in a snow bank.

FAA Inspector Cliff Smart visited the accident site the next morning and found all the leading edge surfaces of the airplane covered with approximately 1/8 inch of rime ice. Mr. Smart also examined the cargo that was unloaded by Mr. Sakalaskas. The airplane contained the following:

Full fuel 150 pounds fuel can 66 pounds pilot 140 pounds passenger 180 pounds 2 sleeping bags 10 pounds heavy bag of food 10 pounds 2 backpacks est 25 ea 50 pounds subtotal = 606 pounds

estimated airplane empty weight = 1000 pounds total gross weight = 1606 pounds

Certificated maximum gross weight = 1450 pounds

These calculations show the airplane's gross weight to be 156 pounds over the certificated maximum gross weight.

The Pilot stated he received a weather briefing which indicated the presence of low fog and stratus in the area. He stated that the visibility below the clouds was good.

According to Airman Records, FAA, Oklahoma City, the Pilot showed 500 hours of total flight time on his last application for a medical certificate.

Aircraft

Registration
N89870
Reported as
Cessna 140
Category
Airplane
Serial number
8915
Engine
Continental C-85-12, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Hirschler, Andre
Registered owner
William N. Sigler
Airworthiness certificate
Standard, Normal
Airport
TKJ · Tok, runway 25, 2,500 × 100 ft, snow

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
22
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
500 total

Weather

Conditions
Visual (VMC) · Day
Visibility
5 statute miles
Lowest ceiling
1,000 ft overcast
Temperature
30 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.