ANC95LA074

NTSB accident investigation · Champion 11BC-S · Anchorage, AK · June 11, 1995

Accident · Serious injuriesLimited investigationFinal report
Date
June 10, 1995, 16:00 local (Jun 11, 1995, 00:00 UTC)
Place
Anchorage, AK
Injuries
1 serious, 1 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N86135Champion 11BC-S
Weather
Visual (VMC) · Day
Status
Completed · report December 4, 1995
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19950610017879A
Case key
2663

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 improper compensation for the wind conditions. Factors associated with the accident are gusty winds and associated downdrafts.

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 weatherTakeoff - initial climb
Weather condition - gustsFactor
Weather condition - downdraftFactor
Compensation for wind conditions - improperPilot in commandCause
In flight collision with terrain/waterDescent

Analysis

The pilot reported he was attempting to takeoff from a small lake in gusty wind conditions. Shortly after takeoff, he said the airplane encountered a downdraft, and that he was forced to lower the nose of the airplane to maintain flying speed. The airplane descended until it collided with terrain.

Factual narrative

On June 10, 1995, about 1600 Alaska daylight time, a float equipped Champion 11BC-S airplane, N86135, sustained substantial damage when it collided with terrain shortly after takeoff from an unnamed lake located approximately 20 miles south of Anchorage, Alaska. The commercial pilot received serious injury. The one passenger aboard was not injured. The personal flight operated without a flight plan in visual meteorological conditions. The flight's intended destination was Kenai, Alaska.

The pilot reported he was attempting to takeoff from a small lake in gusty wind conditions. He estimated the winds at 10 knots, gusting to 18 knots from the north. He said he made a step turn taxi from the south to the north, to make a northerly takeoff run. Soon after takeoff, he said he encountered a downdraft and realized he had low airspeed and minimal altitude above the brush-covered terrain. He lowered the nose of the airplane to increase airspeed, but in the process lost altitude and collided with terrain.

The pilot reported no preimpact mechanical anomaly with the airplane.

Aircraft

Registration
N86135
Reported as
Champion 11BC-S
Category
Airplane
Serial number
562
Airframe hours
1,855
Engine
Continental C-85-12-F, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Morris J. Brown
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 28, 1995 · 8 hours before
Destination
ENA · Kenai, 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
50
Certificate
Commercial
Airplane ratings
Single-engine sea, Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Right
Flight hours
1,800 total · 25 in this make and model · 1,700 as pilot in command · 40 in the last 90 days · 15 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
360° at 10 knots, gusting 18
Visibility
70 statute miles
Lowest ceiling
None
Temperature
68 °F

FAA reports on this event · 1

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