ANC96LA122

NTSB accident investigation · Aeronca 7BCM · Northway, AK · August 10, 1996

Accident · No injuriesLimited investigationFinal report
Date
August 10, 1996, 15:35 local (23:35 UTC)
Place
Northway, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N2502BAeronca 7BCM
Weather
Visual (VMC) · Day
Status
Completed · report August 29, 1997
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19960810022149A
Case key
2878

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's inadequate in-flight planning during a low pass of a remote airstrip and his inadequate compensation for wind conditions. A factor in the accident was unfavorable wind conditions.

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 encounter with weatherManeuvering
Weather condition - unfavorable windFactor
In-flight planning/decision - inadequatePilot in commandCause
Compensation for wind conditions - inadequatePilot in commandCause
In flight collision with objectManeuvering
Object - tree(s)

Analysis

The certificated commercial pilot/flight instructor and a passenger were conducting a local area flight to inspect a remote landing strip. The landing area is about 2,500 feet long at 3,000 feet mean sea level and is oriented in an east/west direction. The pilot indicated he overflew the landing area at high altitude and then conducted a low pass over the landing area in a westerly direction about 10 to 14 feet above the ground. The pilot then reported encountering wind shear at the west end of the runway. The airplane collided with trees and received damage to the fuselage, landing gear, and wings. The pilot indicated the wind conditions were light and variable before the accident, generally from the south/southwest, and were calm after the crash. He did not report any turbulence.

Factual narrative

On August 10, 1996, about 1535 Alaska daylight time, a wheel equipped Aeronca 7BCM, N2502B, crashed while maneuvering over a remote airstrip, about 45 miles north of Northway, Alaska. The airplane was being operated as a visual flight rules (VFR) local area personal flight when the accident occurred. The airplane, registered to and operated by the pilot, sustained substantial damage. The certificated commercial pilot and the sole passenger were not injured. Visual meteorological conditions prevailed. The flight originated at the Northway airport at 1500.

On August 11, 1996, at 1415, the pilot reported in a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) that he was showing the area to another pilot. The airstrip, oriented in an east/west direction, is about 2,500 feet long at 3,000 feet mean sea level (msl). The pilot initially overflew the strip at a high elevation and then performed a low pass in a westerly direction. The pilot began a right turn after passing the west end of the strip at an altitude of 10 to 14 feet above the ground. He indicated that he encountered a down draft or wind shear conditions and the airplane collided with trees. The airplane received damage to the landing gear and fuselage. The pilot reported that when he departed from Northway, the wind conditions were light and variable and after the accident, the winds appeared calm.

The pilot holds a commercial pilot certificate with airplane single-engine, multi-engine, and instrument airplane ratings. In addition, the pilot holds a flight instructor certificate with airplane single-engine, multi-engine, and instrument ratings. In the pilot/operator report the pilot submitted to the Safety Board, the pilot indicated that a south wind was a factor in the accident. He reported the wind direction as south to southwest. He did not report any turbulence.

Aircraft

Registration
N2502B
Reported as
Aeronca 7BCM
Category
Airplane
Serial number
47-1170
Engine
Continental C-85-8FJ, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Daniel J. Lippman
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 8, 1996
Departed
ORT · AK

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
43
Certificates
Flight instructor, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
1,410 total · 600 in this make and model · 1,291 as pilot in command · 145 in the last 90 days · 35 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Visibility
60 statute miles
Lowest ceiling
3,500 ft overcast
Temperature
48 °F

FAA reports on this event · 1

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