SEA88LA029

NTSB accident investigation · de Havilland DHC-2 MK1 · Metlakatla, AK · December 7, 1987

Accident · Minor injuriesLimited investigationFinal report
Date
December 7, 1987, 13:10 local (17:10 UTC)
Place
Metlakatla, AK
Injuries
1 minor, 3 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N17597de Havilland DHC-2 MK1
Weather
Visual (VMC) · Day
Status
Completed · report February 14, 1989
Report
Approved by Office Director
FAA report
19871207069609A
Case key
40765

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.

Loss of control - in flightDescent - normal
Weather condition - gustsFactor
Stall - inadvertentPilot in commandCause
Weather condition - high windFactor
Airspeed - not maintainedPilot in commandCause
Stall warning system - not installedFactor
In flight collision with terrain/waterDescent - uncontrolled
Emergency procedure - improperPilot in commandFactor

Analysis

On final approach for landing the aircraft encountered high gusting winds. The aircraft then stalled and entered a nose down attitude. Accordng to one passenger the pilot was holding full aft elevator during the descent. The aircraft struck the water hard, breaking off the floats. The aircraft then sank several minutes after striking the water. This aircraft has no stall warning system.

Aircraft

Registration
N17597
Reported as
de Havilland DHC-2 MK1
Category
Airplane
Serial number
500
Airframe hours
18,857
Engine
P&W R-985, 450 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Registered owner
Temsco Helicopters
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · November 10, 1987
Departed
KTN · Ketchikan, AK
Destination
MTM · Metlakatla, AK
Airport
MTM · Metlakatla Seaplane

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
29
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine sea, Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
1,456 total · 275 in this make and model · 1,320 as pilot in command · 109 in the last 90 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
150° at 20 knots, gusting 30
Visibility
20 statute miles
Lowest ceiling
3,000 ft overcast
Temperature
39 °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 N17597 · 1

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