ANC85FA154

NTSB accident investigation · de Havilland DHC-2 MK.1 · Tutna Lake, AK · August 18, 1985

Accident · FatalField investigationFinal report
Date
August 18, 1985, 14:03 local (22:03 UTC)
Place
Tutna Lake, AK
Injuries
4 fatal
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N68085de Havilland DHC-2 MK.1
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19850818041689A
Case key
4426

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

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/waterManeuvering
Terrain condition - mountainous/hillyFactor
In-flight planning/decision - poorPilot in commandCause
Proper altitude - not maintainedPilot in commandCause

Analysis

The acft crashed on the side of a mountain at an elev of 2200 ft aprx 3 miles from its intended destination, a remote lake. Purpose of the flt was to discharge caribou hunters into an area where caribou were spotted early that day. The acft was destroyed by fire. Inspection of the wreckage failed to reveal a mechanical failure/malfunction.

Aircraft

Registration
N68085
Reported as
de Havilland DHC-2 MK.1
Category
Airplane
Serial number
1332
Airframe hours
9,018
Engine
P&W R-985-39-14B, 450 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Part 135
Registered owner
Alaska Air Guides, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · August 14, 1985 · 23 hours before
Departed
LHD · Anchorage, AK
Flight plan
Company VFR

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
25
Certificate
Commercial
Airplane ratings
Single-engine land, Single-engine sea, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
4,190 total · 406 in this make and model · 290 in the last 90 days · 8 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
110° at 12 knots
Visibility
40 statute miles
Lowest ceiling
None
Temperature
59 °F, dew point 43 °F
Altimeter
30.00 inHg
Observed at
ILZ, 60 nm away

FAA reports on this event · 1

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