CHI02LA024

NTSB accident investigation · Aeronca 7AC · Erhard, MN · October 1, 2001

Accident · No injuriesLimited investigationFinal report
Date
October 1, 2001, 18:00 local (23:00 UTC)
Place
Erhard, MN
Injuries
2 uninjured
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N1746EAeronca 7AC
Weather
Visual (VMC) · Day
Status
Completed · report July 2, 2002
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20011001030879A
Case key
53776

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 not maintaining adequate airspeed while maneuvering in the turn. Factors relating to this accident were the low airspeed, the inadvertent stall, and the low altitude.

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 flightManeuvering
Aircraft control - not maintainedPilot in commandCause
Airspeed - lowPilot in commandFactor
Stall/spin - inadvertentPilot in commandFactor
Remedial action - attemptedPilot in command
In flight collision with terrain/waterDescent - uncontrolled
Altitude - lowFactor

Analysis

The pilot said he was in a left turning descent from approximately 1,000 feet agl to approximately 700 feet agl when the airplane's left wing dropped. The pilot said, "I applied right stick, and simultaneously the airplane entered a spin. I pushed the stick immediately forward and applied right rudder - waiting for the aircraft to recover. The aircraft recovered approximately 35 feet from the ground, below a tree line that was quickly approaching. There was an area of open (unobstructed) ground to my left and I elected to land there. During the landing one of the landing gear collapsed and I slid to a stop short of the trees." The pilot said a fire occurred in the engine nacelle area. "My extinguisher was not adequate to extinguish the fire and eventually the entire fabric A/C (aircraft) was consumed." The pilot provided the following safety recommendation: "Maintain adequate airspeed at all times when airborne."

Factual narrative

On October 1, 2001, at 1800 central daylight time, an Aeronca 7AC, N1746E, piloted by a private pilot was destroyed when it impacted terrain 6 miles east of Erhard, Minnesota. A post crash fire ensued. Visual meteorological conditions prevailed at the time of the accident. The personal flight was being operated under the provisions of 14 CFR Part 91 without a flight plan. The pilot and passenger on board reported no injuries. The local flight originated near Pelican Rapids, Minnesota, at 1730.

In his written statement, the pilot said he was in a left turning descent from approximately 1,000 feet agl to approximately 700 feet agl when the airplane's left wing dropped. The pilot said, "I applied right stick, and simultaneously the airplane entered a spin. I pushed the stick immediately forward and applied right rudder - waiting for the aircraft to recover. The aircraft recovered approximately 35 feet from the ground, below a tree line that was quickly approaching. There was an area of open (unobstructed) ground to my left and I elected to land there. During the landing one of the landing gear collapsed and I slid to a stop short of the trees." The pilot said a fire occurred in the engine nacelle area. "My extinguisher was not adequate to extinguish the fire and eventually the entire fabric A/C (aircraft) was consumed."

Also in his written statement, the pilot provided the following safety recommendation: "Maintain adequate airspeed at all times when airborne."

Aircraft

Registration
N1746E
Reported as
Aeronca 7AC
Category
Airplane
Serial number
7AC-5313
Airframe hours
2,765
Engine
Continental C-90-12F, 90 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Registered owner
Patrick L. Martin
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · August 27, 2001 · 12 hours before
Departed
47Y · Pelican Rapids, MN

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
46
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Last flight review
May 9, 2000
Seat
Front
Flight hours
354 total · 296 in this make and model · 319 as pilot in command · 15 in the last 90 days · 4 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 5 knots
Visibility
6 statute miles
Lowest ceiling
None
Temperature
63 °F, dew point 45 °F
Altimeter
29.94 inHg
Observed at
PKD, 49 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.