ANC97LA110

NTSB accident investigation · Cessna 185 · Talkeetna, AK · July 23, 1997

Accident · No injuriesLimited investigationFinal report
Date
July 23, 1997, 14:00 local (22:00 UTC)
Place
Talkeetna, AK
Injuries
4 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N9855XCessna 185
Weather
Visual (VMC) · Day
Status
Completed · report November 10, 1998
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19970723019519A
Case key
3033

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 pilots failure to maintain terrain clearance during the downslope, downwind, high altitude, takeoff. Factors were the snow and lighting conditions, and the tailwind takeoff.

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/waterTakeoff
Terrain condition - downhill
Terrain condition - mountainous/hilly
Terrain condition - snow covered
Weather condition - tailwindFactor
Weather condition - whiteoutFactor
Clearance - not maintainedPilot in commandCause

Analysis

The pilot made a steep downslope, downwind, departure from a 1,000-foot-long packed snow strip at 9,500 feet msl. The departure path was down a steep canyon. The lighting was flat, with no contrast available to see the snow covered terrain. The airplane impacted rising terrain shortly after takeoff.

Factual narrative

On July 23, 1997, at 1400 Alaska daylight time, a Cessna 185 ski equipped airplane, N9855X, sustained substantial damage when it impacted terrain during takeoff from the 9,500 foot msl level of the Kahiltna Glacier, Alaska, at position 63-03.4 north latitude, 151-11.0 west longitude. The commercial certificated pilot and three passengers were uninjured. The airplane was operated by Hudson Air Service, Inc., of Talkeetna, Alaska. The flight was conducted under 14 CFR Part 135 in visual meteorological conditions, as an on demand air taxi. A company VFR flight plan was filed.

The pilot stated that he departed downhill from the 1,000 foot long by 50 foot wide snow strip, with a 10-15 knot down-glacier wind. The pilot said that just after becoming airborne, the airplane contacted rising terrain on the canyon side, and came to rest at 8,400 feet msl. He described the lighting conditions as "flat," and as he was unable to distinguish the ground's snowy surface, he was using the surrounding ridges for visual reference.

Aircraft

Registration
N9855X
Reported as
Cessna 185
Category
Airplane
Serial number
1850055
Airframe hours
10,050
Engine
Continental IO-520-D, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Operator
Hudson Air Service, Inc., doing business as Hudson Air Service, Inc.
Registered owner
Cliff L. Hudson
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · July 22, 1997 · 1 hours before
Departed
Kahiltna Glacer, AK
Destination
TKA · AK
Flight plan
Company VFR
Airport
Kahiltna Glacier Strip

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
50
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
3,450 total · 955 in this make and model · 3,420 as pilot in command · 60 in the last 90 days · 50 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 10 knots
Visibility
30 statute miles
Temperature
25 °F, dew point 21 °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 N9855X · 3

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