ANC08CA065

NTSB accident investigation · de Havilland DHC-3 · Talkeetna, AK · April 28, 2008

Accident · No injuriesData collectionFinal report
Date
April 28, 2008, 13:30 local (21:30 UTC)
Place
Talkeetna, AK
Injuries
8 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N565TAde Havilland DHC-3
Defining event
Landing-landing roll: Sys/Comp malf/fail (non-power)
Weather
Visual (VMC) · Day
Status
Completed · report July 30, 2008
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
20080428836009A
Case key
68340

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

On this page

Probable cause

The pilot's selection of an unsuitable landing site, which resulted in an overload failure of the tail ski assembly during the landing roll.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The commercial pilot related that he was transporting mountain climbers to a remote mountain glacier, and was landing the wheel-ski-equipped airplane in deep snow. During the landing roll, he said he felt a slight bump, and stopped the airplane. Inspection disclosed that the tail ski had become buried in deep snow during a turn, breaking the tail ski attachment bracket, which resulted in the ski puncturing the lower fuselage and damaging a structural bulkhead. The pilot stated that there were no preaccident mechanical problems with the airplane.

Factual narrative

The commercial pilot related he was transporting mountain climbers to a remote mountain glacier, and was landing the wheel-ski equipped airplane in deep snow. During the landing roll, he said he felt a slight bump, and stopped the airplane. Inspection disclosed that the tail ski had become buried in deep snow during a turn, breaking the tail ski attachment bracket, which resulted in the ski puncturing the lower fuselage and damaging a structural bulkhead. The pilot stated that there were no preaccident mechanical problems with the airplane.

Aircraft

Registration
N565TA
Reported as
de Havilland DHC-3
Category
Airplane
Serial number
47
Engine
Garrett TPE-331, turbo prop
Damage
Substantial damage
Flight
Part 135
Operator
Talkeetna Air Taxi Inc
Registered owner
Talkeetna Air Taxi Inc
Airworthiness certificate
Standard, Normal
Departed
TKA · Talkeetna, AK
Flight plan
VFR/IFR

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
41
Injuries
None
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2
Flight hours
9,700 total · 565 in this make and model · 55 in the last 90 days · 18 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Visibility
100 statute miles

FAA reports on this event · 1

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