ANC98LA070

NTSB accident investigation · Cessna 185 · Skwentna, AK · June 10, 1998

Accident · No injuriesLimited investigationFinal report
Date
June 9, 1998, 20:30 local (Jun 10, 1998, 04:30 UTC)
Place
Skwentna, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Taxi
Aircraft
N2902QCessna 185
Weather
Visual (VMC) · Day
Status
Completed · report February 15, 2001
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19980609021349A
Case key
3155

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 wind conditions. Factors associated with the accident are wind gusts, and a crosswind condition.

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/waterTaxi - to takeoff
Compensation for wind conditions - inadequatePilot in commandCause
Weather condition - crosswindFactor
Weather condition - gustsFactor

Analysis

The certificated private pilot was step taxiing to the west in preparation for a departure to the south. The pilot noted that after the airplane passed beyond an area of shoreline that was protecting the airplane from a left crosswind, a sudden gust of wind lifted the left wing. The right wing struck the water, pivoted the airplane to the right, and the left wing struck the water. The right and left wings sustained substantial damage. The pilot stated that wind conditions at the time of the accident were from varying directions with peak gusts to 10 knots.

Factual narrative

On June 9, 1998, about 2030 Alaska daylight time, a float equipped Cessna 185 airplane, N2902Q, sustained substantial damage while step taxiing at a remote lake located about 10 miles north of Skwentna, Alaska. The airplane was being operated as a visual flight rules (VFR) personal flight under Title 14 CFR Part 91 when the accident occurred. The certificated private pilot/airplane owner and the one passenger aboard were not injured. Visual meteorological conditions prevailed, and no flight plan was filed. The flight originated at Seymour Lake, Wasilla, about 1430.

During a telephone conversation with the National Transportation Safety Board investigator-in-charge on June 10, the pilot reported that he was step taxiing to the west in preparation for a departure to the south. The pilot noted that after the airplane passed beyond an area of shoreline that was protecting the airplane from a left crosswind, a sudden gust of wind lifted the left wing. The right wing struck the water, pivoted the airplane to the right, and the left wing struck the water. The right and left wings sustained substantial damage.

The pilot reported that wind conditions at the time of the accident were from varying directions with peak gusts to 10 knots.

Aircraft

Registration
N2902Q
Reported as
Cessna 185
Category
Airplane
Serial number
18503539
Airframe hours
1,863
Engine
Continental IO-540-S1A5, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Grant Debs Webley
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 3, 1998 · 5 hours before
Departed
Wasilla, 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
46
Certificate
Private
Airplane ratings
Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
788 total · 231 in this make and model · 692 as pilot in command · 5 in the last 90 days · 5 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 5 knots, gusting 10
Visibility
30 statute miles
Lowest ceiling
4,000 ft broken
Temperature
50 °F

FAA reports on this event · 1

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