ANC86LA149

NTSB accident investigation · Piper PA-18 · Umiat, AK · September 8, 1986

Accident · FatalLimited investigationFinal report
Date
September 8, 1986, 12:00 local (20:00 UTC)
Place
Umiat, AK
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N9049ZPiper PA-18
Weather
Day
Status
Completed
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19860908045879A
Case key
4735

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.

In flight collision with terrain/waterCruise - normal
Weather condition - low ceilingFactor
In-flight planning/decision - inadequatePilot in commandFactor
Weather evaluation - inadequatePilot in commandFactor
Flight into known adverse weather - continuedPilot in commandCause
Judgment - poorPilot in commandCause

Analysis

The airplane departed on September 7, 1986 for a local hunting trip with a client. The airplane did not return and the wreckage was found on September 9, 1986. The airplane was destroyed by post-impact fire. According to the guide, for whom the pilot was working, the airplane was using unleaded automotive fuel. The engine teardown revealed only impact and fire damage.

Aircraft

Registration
N9049Z
Reported as
Piper PA-18
Category
Airplane
Serial number
18-6641
Airframe hours
3,197
Engine
Lycoming O-320-A2B, 150 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Business · Part 91
Registered owner
Kenneth C. Swanson
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 29, 1986

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
42
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Front
Toxicology
Performed
Flight hours
584 total · 533 as pilot in command

Weather

Conditions
Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
500 ft overcast
Temperature
43 °F, dew point 43 °F
Altimeter
29.00 inHg
Observed at
UMT, 28 nm away

FAA reports on this event · 1

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