ANC91LA124

NTSB accident investigation · Piper PA-18 · Eagle River, AK · August 14, 1991

Accident · No injuriesLimited investigationFinal report
Date
August 13, 1991, 19:15 local (Aug 14, 1991, 03:15 UTC)
Place
Eagle River, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N1017APiper PA-18
Weather
Visual (VMC) · Day
Status
Completed · report March 24, 1993
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19910813033959A
Case key
5601

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 pilot's failure to maintain airspeed during climbout and lack of aircraft control. Contributing to the accident was both the downdraft and gusting wind.

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 flightTakeoff - initial climb
Weather condition - downdraftFactor
Aircraft control - not maintainedPilot in commandCause
Weather condition - gustsFactor
Airspeed - not maintainedPilot in commandCause
In flight collision with terrain/waterTakeoff - initial climb

Analysis

Shortly after liftoff and during initial climb, the pilot encountered a strong downdraft and lost control of the airplane, subsequently crashing into a lake.

Aircraft

Registration
N1017A
Reported as
Piper PA-18
Category
Airplane
Serial number
18587
Airframe hours
2,198
Engine
Lycoming O-320, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
David L. Morgan
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 12, 1991 · 46 hours before
Departed
NONE · Eagle River, AK
Flight plan
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
44
Certificate
Private
Airplane ratings
Single-engine land, Single-engine sea
Medical
Class 3, Valid Medical--no waivers/lim.
Flight hours
518 total · 210 in this make and model · 471 as pilot in command · 32 in the last 90 days · 11 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 8 knots, gusting 12
Visibility
25 statute miles
Lowest ceiling
12,000 ft overcast
Temperature
54 °F, dew point 43 °F
Altimeter
29.00 inHg

FAA reports on this event · 1

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