CEN11LA466

NTSB accident investigation · Dehavilland DHC-1 · Benton, KS · July 9, 2011

Accident · Serious injuriesLimited investigationFinal report
Date
July 9, 2011, 11:05 local (16:05 UTC)
Place
Benton, KS
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N22DHDehavilland DHC-1
Defining event
Approach-VFR pattern final: Aerodynamic stall/spin
Weather
Visual (VMC) · Day
Status
Completed · report February 16, 2012
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA/FSDO
FAA report
20110709016089A
Case key
81047

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 did not maintain sufficient airspeed while maneuvering at low altitude, which resulted in an inadvertent stall and spin.

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.

Action: incorrect action performancePersonnel issues › Action/decision · PilotDehavilland DHC-1: 1 caseAll aircraft: 1,386 casesProbable cause
Performance/control parameters: airspeedAircraft › Aircraft oper/perf/capability · Not attained/maintainedDehavilland DHC-1: 1 caseAll aircraft: 1,681 cases

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 he was practicing touch-and-go landings and takeoffs when he made a tight 360-degree turn in the pattern for spacing. During the turn, he allowed the airplane to get slow. The airplane stalled and entered a spin with insufficient altitude to recover. The airplane collided with terrain and came to rest against a shed. The pilot reported that there were no mechanical problems with the airplane or the engine prior to the accident.

Factual narrative

On July 9, 2011, at 1105 central daylight time, N22DH, a Dehavilland DHC-1, sustained substantial damage after it lost control on final approach to runway 17 at Lloyd Stearman Airport (1K1), Benton, Kansas. The private pilot/registered owner sustained serious injuries. Visual meteorological conditions prevailed and no flight plan was filed for the personal flight conducted under 14 Code of Federal Regulations Part 91. Two witnesses, who were flying a helicopter in the traffic pattern, saw the airplane enter a sudden, 360 degree turn to the right over the end of the runway. According to one witness, as the airplane entered the turn, the wings appeared to buffet but the pilot recovered on a north heading about 200 feet above the ground. As the pilot attempted to turn back to the runway, the airplane stalled and spun to the right. It collided with terrain about a half mile north west of the runway. According to a Federal Aviation Administration (FAA) inspector, he along with two other inspectors, performed a postaccident examination of the airplane and interviewed the pilot. He said the pilot had recently purchased the airplane and was practicing touch and go landings when the accident occurred. The pilot said that while on final approach, he made a right 360 degree turn for spacing and subsequently got slow, stalled, and entered a spin. The pilot was unable to recover from the spin before the airplane struck the ground. The airplane came to rest against a residential shed resulting in substantial damage to the fuselage, both wings, and the tail section. There was no postimpact fire. The pilot reported there were no mechanical problems with the airplane or engine prior to the accident.

Aircraft

Registration
N22DH
Reported as
Dehavilland DHC-1
Category
Airplane
Serial number
C1-0886
Engine
Dehav ENG GIPSY MAJOR, 140 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Frazier Michael E.
Registered owner
Frazier Michael E.
Airworthiness certificate
Special, Experimental (Special)
Departed
1K1 · Benton, KS
Destination
1K1 · Benton, KS
Airport
1K1 · Lloyd Stearman

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
55
Injuries
Serious
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Seat
Front
Flight hours
850 total · 26 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
150° at 14 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
88 °F, dew point 70 °F
Altimeter
29.82 inHg
Observed at
AAO, 5 nm away

Docket · 3

The files NTSB released with the investigation on December 29, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 205 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.

Other investigations on N22DH · 1

Matched to the same aircraft by N-number and date.