ANC97LA058

NTSB accident investigation · Cessna 185F · Manley, AK · April 17, 1997

Accident · No injuriesLimited investigationFinal report
Date
April 16, 1997, 19:00 local (Apr 17, 1997, 03:00 UTC)
Place
Manley, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8310QCessna 185F
Weather
Visual (VMC) · Day
Status
Completed · report May 29, 1998
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19970416006319A
Case key
2991

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 inadequate compensation for crosswind conditions and failure to maintain directional control of the airplane during the landing run. Factors relating to the accident were: frozen terrain, adverse wind condition, and proximity of a snowbank.

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.

Loss of control - on ground/waterLanding
Terrain condition - frozenFactor
Weather condition - crosswindFactor
Weather condition - gustsFactor
Compensation for wind conditions - inadequatePilot in commandCause
Directional control - not maintainedPilot in commandCause
Ground loop/swerve - inadvertentPilot in command
On ground/water encounter with terrain/waterLanding
Terrain condition - snowbankFactor

Analysis

The pilot was landing a ski/wheel equipped airplane on a remote, ice covered lake. During the landing run toward the north, the airplane encountered a strong gust of wind from the left, and it began to ground loop with the tail of the airplane veering to the right. The right wing of the airplane collided with a snow bank, and the airplane came to rest upright. The pilot reported the wind conditions were, 270 degrees at 10 knots, with gusts to 20 knots.

Factual narrative

On April 16, 1997, about 1900 Alaska daylight time, a wheel/ski equipped Cessna 185F, N8310Q, crashed during landing on a remote frozen lake, about 40 miles south of Manley Hot Springs, Alaska. The airplane was being operated as a visual flight rules (VFR) cross-country personal flight when the accident occurred. The airplane, registered to and operated by the pilot, sustained substantial damage. The certificated private pilot, and the sole passenger, were not injured. Visual meteorological conditions prevailed. The flight originated at the Fairbanks International Airport, Fairbanks, Alaska, at 1800.

On April 22, 1997, at 1430, the pilot reported in a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), that she was landing on Wein Lake in a northerly direction. The skis were deployed for the landing. After touchdown, the pilot noticed the wind conditions were stronger than anticipated, and the ground speed was faster than anticipated. During the rollout, the airplane encountered a strong gust of wind from the left (west), and the airplane began to ground loop with the tail of the airplane veering to the right. The right wing of the airplane collided with a snow bank, and the airplane came to rest upright. The airplane received damage to the right wing spar, right horizontal stabilizer, and the right side of the fuselage.

The pilot reported the weather conditions consisted of clear skies; visibility, 60 miles, temperature, 20 degrees F; wind, 270 degrees at 10 knots, with gusts to 20 knots.

Aircraft

Registration
N8310Q
Reported as
Cessna 185F
Category
Airplane
Serial number
185003659
Airframe hours
2,894
Engine
Continental IO-520-D, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Robin L. Maher
Registered owner
Maher Family Trust
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 10, 1997 · 30 hours before
Departed
FAI · Fairbanks, AK

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, Single-engine sea
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
400 total · 169 in this make and model · 253 as pilot in command · 30 in the last 90 days · 25 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 10 knots, gusting 20
Visibility
60 statute miles
Lowest ceiling
None
Temperature
19 °F

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 N8310Q · 1

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