ANC98LA080

NTSB accident investigation · Cessna 185F · Chitina, AK · June 21, 1998

Accident · No injuriesLimited investigationFinal report
Date
June 21, 1998, 15:30 local (23:30 UTC)
Place
Chitina, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N80596Cessna 185F
Weather
Visual (VMC) · Day
Status
Completed · report July 2, 1999
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19980621014479A
Case key
3164

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 NTSB’s determination of the probable cause, and any contributing factors.

The pilot's selection of unsuitable terrain for landing. Factors in the accident were uneven and soft terrain on the landing strip.

Analysis

The pilot was landing on a remote airstrip next to a lodge. The airstrip's gravel bar, and sand bar surface, were uneven and soft. During the landing roll, the airplane encountered an uneven area of the gravel bar, and bounced into an area of soft sand. The tip of the left main wheel ski assembly dug into the ground, and the airplane then nosed over. The airplane received damage to the main landing gear, fuselage, and wings.

Factual narrative

On June 21, 1998, about 1530 Alaska daylight time, a wheel/ski equipped Cessna 185F airplane, N80596, sustained substantial damage while landing at a remote airstrip, about 63 miles east of Chitina, Alaska. The airplane was being operated as a visual flight rules (VFR) cross-country personal flight under Title 14 CFR Part 91, when the accident occurred. The airplane was registered to Ultima Thule Outfitters Inc., Chitina. The certificated commercial pilot, the sole occupant, was not injured. Visual meteorological conditions prevailed. The flight originated at the Chitina Airport, about 1450.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on June 21, 1998, at 1735, the pilot reported he was transporting personal camping equipment to the Ultima Thule Lodge. The lodge is located along the Chitina River in the Wrangle-St. Elias National Preserve, and has its own airstrip. The airstrip is oriented east/west. It is 1,500 feet long, and 20 feet wide. The airstrip is comprised of part gravel bar, and part sand bar. The surface is uneven and soft.

The pilot stated he touched down on the airstrip while landing toward the west. During the landing roll, the airplane encountered an uneven area of the gravel bar, and bounced into an area of the sand bar. The left wheel encountered an area of soft sand and rapidly decelerated. The tip of the left main wheel ski assembly dug into the ground, and the airplane then nosed over. The airplane received damage to the main landing gear, fuselage, and wings.

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/waterLanding - roll
Terrain condition - rough/unevenFactor
Terrain condition - softFactor
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause
Nose overLanding - roll

Aircraft

Registration
N80596
Reported as
Cessna 185F
Category
Airplane
Serial number
18503130
Airframe hours
4,101
Engine
Continental IO-520, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Ultima Thule Outfitters Inc.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · May 27, 1998 · 33 hours before
Departed
CXC · AK
Airport
Ultima Thule Lodge, runway 27, 1,500 × 20 ft, gravel

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
27
Certificate
Commercial
Airplane ratings
Single-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
3,500 total · 400 in this make and model · 4,300 as pilot in command · 300 in the last 90 days · 100 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 2 knots
Visibility
40 statute miles
Lowest ceiling
8,000 ft overcast
Temperature
64 °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 N80596 · 1

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