ANC12CA057

NTSB accident investigation · Champion 7GCB · Tyonek, AK · June 23, 2012

Accident · No injuriesData collectionFinal report
Date
June 22, 2012, 22:00 local (Jun 23, 2012, 06:00 UTC)
Place
Tyonek, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N466RVChampion 7GCB
Defining event
Maneuvering-low-alt flying: Aerodynamic stall/spin
Weather
Visual (VMC) · Day
Status
Completed · report October 9, 2012
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA Anchorage FSDO
FAA report
20120622013369A
Case key
84074

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 failure to maintain adequate airspeed, which resulted in an inadvertent stall while maneuvering.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotChampion 7GCB: 3 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: airspeedAircraft › Aircraft oper/perf/capability · Not attained/maintainedChampion 7GCB: 1 caseAll aircraft: 1,681 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot stated that he was flying his tailwheel-equipped airplane at 400 feet above ground level when he spotted two bears in a swamp. He said that, as he was turning left to look at the bears, the nose of the airplane dropped rapidly, and the airplane descended vertically. During the pilot's efforts to recover from the aerodynamic stall, the airplane impacted terrain, sustaining substantial damage to both wings and the fuselage. The pilot reported that there were no preaccident mechanical anomalies with the airplane.

Factual narrative

The pilot stated that he was flying his tailwheel-equipped airplane at 400 feet above ground level when he spotted two bears in a swamp. He said that as he was turning left to look at the bears, the nose of the airplane dropped rapidly, and the airplane descended vertically. During the pilot's efforts to recover from the aerodynamic stall, the airplane impacted terrain, sustaining substantial damage to both wings and the fuselage. The pilot reported that there were no preaccident mechanical anomalies with the airplane.

Aircraft

Registration
N466RV
Reported as
Champion 7GCB
Category
Airplane
Serial number
166
Airframe hours
2,003
Engine
Lycoming O-320 SERIES, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Hicks Stephen J
Registered owner
Hicks Stephen J
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 3, 2012 · 62 hours before
Departed
Z41 · Anchorage, AK
Destination
Z41 · Anchorage, 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
35
Injuries
None
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Seat
Front
Flight hours
5,000 total · 210 in this make and model · 100 in the last 90 days · 55 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
200° at 15 knots, gusting 28
Visibility
10 statute miles
Temperature
54 °F, dew point 50 °F
Altimeter
29.95 inHg

Docket · 1

The files NTSB released with the investigation on August 15, 2012, on NTSB’s docket system: statements, records, photos and specialists’ reports. 822 KB in all.

FAA reports on this event · 1

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