ANC06LA105

NTSB accident investigation · American Champion 8GCBC · Anchorage, AK · August 1, 2006

Accident · Serious injuriesLimited investigationFinal report
Date
July 31, 2006, 17:00 local (Aug 1, 2006, 01:00 UTC)
Place
Anchorage, AK
Injuries
1 serious, 1 minor
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N35RFAmerican Champion 8GCBC
Weather
Visual (VMC) · Day
Status
Completed · report May 29, 2007
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
Anchorage FSDO-03
FAA report
20060731014709A
Case key
64247

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 flight instructor's failure to maintain sufficient airspeed to avoid a stall during a turn to reverse direction, which resulted in an inadvertent stall and a loss of control. Factors associated with the accident are the inadvertent stall, and the flight instructor's improper in-flight planning/decision to simulate a low altitude loss of engine power over water.

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 - turn to reverse direction
In-flight planning/decision - improperPilot in command(cfi)Factor
Low altitude flight/maneuver - performedPilot in command(cfi)Factor
Emergency procedure - simulatedPilot in command(cfi)
Airspeed(vs) - not maintainedPilot in command(cfi)Cause
Stall - inadvertentPilot in command(cfi)Factor
In flight collision with objectDescent - uncontrolled
Object - tree(s)

Analysis

The commercial certificated flight instructor was giving primary flight instruction under Title 14, CFR Part 91 when the accident occurred. According to the student pilot, they were doing traffic pattern work at a gravel airstrip, when during initial climb from the runway, the instructor "pulled the engine" to simulate a loss of engine power emergency. The runway they were using required a departure over a saltwater inlet, and the only recourse was to execute a 180 degree turn toward the runway they had just departed. The student estimated they were 300-500 feet above the water when he initiated a standard rate turn. He said the instructor told him the turn was not steep enough, but because of the low altitude, the student did not feel comfortable increasing the angle of bank. The student said the instructor took control of the airplane, and dramatically increased the angle of bank. He said the airplane stalled, and dove toward the ground, with the instructor leveling the wings just as the airplane collided with trees adjacent to the runway. The student said the airplane's wings and fuselage received structural damage.

Factual narrative

On July 31, 2006, about 1700 Alaska daylight time, an American Champion 8GCBC airplane, N35RF, sustained substantial damage when it collided with trees during a simulated engine out landing at the Goose Bay Airstrip, about 10 miles north of Anchorage, Alaska. The airplane was being operated by the flight instructor as a visual flight rules (VFR) instructional flight under Title 14, CFR Part 91, when the accident occurred. The commercial certificated flight instructor received minor injuries, and the student pilot received serious injuries. Visual meteorological conditions prevailed, and no flight plan was filed. The flight originated at Merrill Field, Anchorage, about 1519.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) on July 31, a relative of the instructor pilot said the instructor pilot telephoned him from the accident site, and said the airplane had nosed over during landing, damaging the wings and fuselage.

During a telephone interview with the NTSB IIC on January 24, 2007, the student pilot said they were doing pattern work at a gravel airstrip. He said during climb from the runway the instructor "pulled the engine" to simulate an engine out emergency. The student said the runway they were using required a climb over a saltwater inlet, and the only recourse was to execute a 180 degree turn toward the runway they had just departed. The student said he thought they were 300-500 feet above the water, and he initiated a standard rate turn. He said the instructor told him the turn was not steep enough. The student said because of their altitude he did not feel comfortable increasing the angle of bank. The student said the instructor took control of the airplane and dramatically increased the angle of bank, at which time the airplane stalled and dove toward the ground. He said the instructor leveled the wings just as the airplane collided with trees adjacent to the runway.

The flight instructor did not complete the NTSB Pilot/Operator Aircraft Accident/Incident form as requested, and he did not respond to telephone messages left by the IIC.

Aircraft

Registration
N35RF
Reported as
American Champion 8GCBC
Category
Airplane
Serial number
438-2002
Airframe hours
545
Engine
Lycoming O-360-C1G, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Kenny Morris
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 1, 2006
Departed
MRI · Merrill Field, AK
Airport
Z40 · Goose Bay, runway 07, 3,000 × 75 ft, gravel

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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
22
Injuries
Minor
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Without waivers/limitations
Seat
Rear
Role
Student pilot
Age
52
Injuries
Serious
Certificate
Student
Medical
Class 2, With waivers/limitations
Seat
Front
Flight hours
40 total

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 3 knots
Visibility
10 statute miles
Lowest ceiling
10,000 ft broken
Temperature
63 °F, dew point 50 °F
Altimeter
29.67 inHg
Observed at
MRI, 10 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.