ANC83LA162

NTSB accident investigation · Piper PA-18-150 · Skwentna, AK · September 4, 1983

Accident · Minor injuriesLimited investigationFinal report
Date
September 4, 1983, 09:45 local (17:45 UTC)
Place
Skwentna, AK
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N4097ZPiper PA-18-150
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19830904047219A
Case key
4164

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 flightApproach - vfr pattern - final approach
Weather condition - turbulenceFactor
Flight controls - improper use ofPilot in commandCause
Throttle/power control - improper use ofPilot in commandCause
Airspeed - reducedPilot in commandCause
Stall/mush - not correctedPilot in commandCause
Wind information - not obtainedPilot in commandCause
Preflight briefing service - not obtainedPilot in commandCause
In-flight briefing service - not obtainedPilot in commandCause
In flight collision with terrain/waterApproach - vfr pattern - final approach

Analysis

The acft stalled into the ground on final approach landing in gusty turbulent wind conditions. The pilot stated that he was trying to land when a gust of wind flipped the acft over at 500 ft AGL. He said he corrected with left aileron but by the time he could recover he had lost too much altitude and pancaked into the ground. Fss were available to the pilotby telephone or radio but he did not receive a weather briefing. The weather was VMC but the wind was reported to be from 270 degrees at 20 KTS, gusting to 25 KTS. With moderate turbulence.

Aircraft

Registration
N4097Z
Reported as
Piper PA-18-150
Category
Airplane
Serial number
18-8111
Airframe hours
2,997
Engine
Lycoming O-320-A2A, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
David J. Parnow
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 22, 1983 · 89 hours before
Departed
Anchorage, AK
Airport
SKW · Skwetna

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
38
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
676 total · 676 in this make and model · 641 as pilot in command · 71 in the last 90 days · 8 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 20 knots, gusting 25
Visibility
90 statute miles
Lowest ceiling
10,000 ft broken
Temperature
55 °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.