ANC89FA144

NTSB accident investigation · Piper PA-12 · Windy Fork, AK · August 13, 1989

Accident · FatalField investigationFinal report
Date
August 13, 1989, 00:00 local (08:00 UTC)
Place
Windy Fork, AK
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Unknown
Aircraft
N7542HPiper PA-12
Weather
Not reported
Status
Completed · report July 9, 1990
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19890813032069A
Case key
5121

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

Failure of the pilot to maintain airspeed while operating to or from the gravel bar, which resulted in an inadvertent stall. The rising terrain was considered a contributing factor.

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 flightUnknown
Airspeed - not maintainedPilot in commandCause
Stall - inadvertentPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - risingFactor

Analysis

The plt & pax departed on a sheep hunting trip on 8/5/89 & were expected to return by 8/19/89. When they were overdue, a search was initiated & the acft was found on 8/20/89, where it crashed into rising terrain near a gravel bar. There was evidence the acdnt may have occurred as the acft was being operd from the gravel bar. An exam revealed the acft had crashed in a steep, nose down attitude, consistent with a stall. No mechanical anomalies of the acft were found drg the investigation. On an application for the plt's last med cert, dated 12/16/88, he rprtd a total flt time of 270 hrs. Elev of the crash site was aprx 2800 ft.

Aircraft

Registration
N7542H
Reported as
Piper PA-12
Category
Airplane
Serial number
12-408
Airframe hours
2,574
Engine
Lycoming O-320, 160 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Operator
Jaros, Martin R.
Registered owner
Jaros, Martin R
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 20, 1989 · 20 hours before
Destination
MRI · Anchorage, AK
Airport
NONE

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
Toxicology
Performed
Flight hours
270 total

Weather

Conditions
Not reported

FAA reports on this event · 1

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