CHI94LA196

NTSB accident investigation · Popehn Arthur J. Coot A · Circle Pines, MN · June 10, 1994

Accident · Serious injuriesLimited investigationFinal report
Date
June 10, 1994, 12:30 local (17:30 UTC)
Place
Circle Pines, MN
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N123APPopehn Arthur J. Coot A
Weather
Visual (VMC) · Day
Status
Completed · report January 12, 1995
Report
Approved by Office Director
FAA report
19940610014919A
Case key
9565

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-in-command's inattention to the fuel supply. Factors were the pilot-in-command's diverted attention, his not performing refueling, and rough/uneven terrain.

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 engine power(partial) - nonmechanicalCruise
Fuel system,tank - exhaustion
Refueling - not performedPilot in commandFactor
Fuel supply - inattentivePilot in commandCause
Diverted attentionPilot in commandFactor
Forced landingDescent - emergency
On ground/water encounter with terrain/waterLanding - flare/touchdown
Terrain condition - rough/unevenFactor

Analysis

The pilot of the amateur built airplane stated that his attention was diverted to the oil temperature and pressure gages during the flight and he failed to monitor fuel consumption. When he realized that the fuel state was low, he attempted to return to the airport; however, the engine lost power from fuel exhaustion and he elected to conduct a forced landing off the airport. During the landing the airplane encountered unsuitable terrain.

Factual narrative

On June 10, 1994, at 1230 central daylight time, a Coot A, N123AF, registered to Arthur J. Popehn of Plymouth, Minnesota, and operated by a commercial pilot, experienced a loss of engine power. During a forced landing the airplane sustained substantial damage. The pilot received serious injuries. The personal 14 CFR Part 91 flight was operating in visual meteorological conditions. No flight plan was on file. The local flight departed at 0845.

According to the pilot, his attention was focused on the oil temperature and pressure gages on the newly overhauled engine. The engine had previous problems with oil leaks and the pilot stated he was attempting to determine the source of the leak.

The pilot stated he was 10 miles north of Anoka County Airport when he realized that the fuel quantity gage read empty. He then descended from 5,000 feet to approximately 3,000 feet mean sea level into a southwest wind. The engine started to sputter as the airplane entered a mid-field downwind for runway 17 at the Anoka County Airport.

The pilot stated that when he realized the airplane would not reach the runway, he elected to land in a pasture between a barn and a large grove of trees. He stated that during the forced landing the airplane encountered rough terrain.

Aircraft

Registration
N123AP
Reported as
Popehn Arthur J. Coot A
Category
Airplane, amateur-built
Serial number
AP01
Airframe hours
40
Engine
Franklin 6A-335-B, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Popehn, Arthur J.
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · May 24, 1994 · 14 hours before
Departed
ANE · Anoka, MN
Airport
ANE · Anoka County Airport, runway 17, 4,856 × 100 ft, asphalt

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
74
Certificates
Commercial, Flight engineer
Airplane ratings
Single-engine land, Multi-engine sea
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
1,994 total · 31 in this make and model · 1,693 as pilot in command · 25 in the last 90 days · 20 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 10 knots
Visibility
20 statute miles
Lowest ceiling
None
Altimeter
29.00 inHg
Observed at
MIC, 8 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.