ERA09LA325

NTSB accident investigation · Smith Bret B Searey · Knoxville, TN · June 6, 2009

Accident · FatalLimited investigationFinal report
Date
June 6, 2009, 17:44 local (21:44 UTC)
Place
Knoxville, TN
Injuries
2 fatal
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N169GWSmith Bret B Searey
Defining event
Maneuvering: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report December 20, 2010
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO, Rotax Flying and Safety Club
FAA report
20090606010759A
Case key
73970

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The pilot's failure to maintain adequate airspeed, resulting in an aerodynamic stall and uncontrolled descent.

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 · PilotSmith Bret B SEAREY: 1 caseAll aircraft: 9,295 casesProbable cause
Performance/control parameters: airspeedAircraft › Aircraft oper/perf/capability · Not attained/maintainedSmith Bret B SEAREY: 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 was providing rides to passengers in an amateur-built seaplane, and following a previous uneventful local flight with another passenger, the pilot returned, landed, and the accident passenger boarded. The final moments of the accident flight were captured on video by pleasure boaters. The airplane overflew the boat at a low altitude, then entered a steep bank, descended steeply, and impacted the water. Examination of the wreckage revealed no evidence of any preimpact mechanical malfunctions or failures of the engine or flight controls. According to the experimental seaplane’s kit manufacturer, when equipped with a 100 horsepower engine and loaded with 2 occupants, the stall speed in level flight was 40 miles per hour.

Factual narrative

HISTORY OF FLIGHT On June 6, 2009, about 1744 eastern daylight time, an experimental, amateur-built Smith Searey, N169GW, was substantially damaged when it impacted Melton Lake, near Knoxville, Tennessee. The certificated private pilot and passenger were fatally injured. Visual meteorological conditions prevailed, and no flight plan was filed for the flight. The local personal flight was conducted under the provisions of 14 Code of Federal Regulations Part 91. According to information provided by a Federal Aviation Administration inspector, the pilot was providing rides to passengers attending a celebration on Melton Lake. Following a previous uneventful local flight with another passenger, the pilot returned, landed, and the accident passenger boarded. The final moments of the accident flight were captured on video by pleasure boaters on Melton Lake. The video depicted the accident airplane flying, about 200 to 400 feet above the boat, before it proceeded away. The airplane then entered a steep bank, descended steeply, and impacted the water. PERSONNEL INFORMATION According to FAA records, the pilot held a private pilot certificate with ratings for airplane single engine land and sea. The pilot's most recent FAA third-class medical certificate was issued on February 4, 2009, and the pilot reported 450 total hours of flight experience on that date. AIRCRAFT INFORMATION The airplane was a dual-seat, single engine, amateur-built amphibious seaplane. According to FAA records, the airplane was built and owned by the pilot, and was completed in 2001. No maintenance records were recovered. According to the experimental seaplane’s kit manufacturer, when equipped with a 100 horse power engine and loaded with 2 occupants, the stall speed in level flight was 40 miles per hour. METEOROLOGICAL INFORMATION The 1753 weather observation at Mc Ghee Tyson Airport, located 15 nautical miles southeast of the accident site, included winds from 010 degrees at 3 knots, 10 statute miles visibility, few clouds at 4,800 feet, temperature 26 degrees C, dewpoint 14 degrees C, and altimeter setting of 29.96 inches of mercury. WRECKAGE AND IMPACT INFORMATION After recovery from Melton Lake, the wreckage was examined under the supervision of a Federal Aviation Administration (FAA) inspector. Flight control continuity was traced from all flight control surfaces to the cockpit controls, and no anomalies were noted with the airframe. The engine was drained of accumulated water, examined, and test run. During the test run the engine produced power and no mechanical anomalies were noted. MEDICAL AND PATHOLOGICAL INFORMATION The University of Tennessee Medical Center, Knoxville, Tennessee, performed autopsy postmortem examination on the pilot. The autopsy report indicated the cause of death was "blunt force injuries of torso." The FAA’s Bioaeronautical Sciences Research Laboratory, Oklahoma City, Oklahoma, performed toxicological testing for the pilot. Fluid and tissue specimensfrom the pilot tested negative for carbon monoxide, cyanide, ethanol. Ibuprofen and Naproxen were detected in urine.

Aircraft

Registration
N169GW
Reported as
Smith Bret B Searey
Category
Airplane, amateur-built
Serial number
1DK184
Engine
Rotax 912ULS, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Departed
NONE · Knoxville, TN
Destination
NONE · Knoxville, TN

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
40
Injuries
Fatal
Certificate
Private
Airplane ratings
Single-engine sea, Single-engine land
Medical
Class 3, Without waivers/limitations
Toxicology
Performed
Flight hours
450 total

Weather

Conditions
Visual (VMC) · Day
Wind
10° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 57 °F
Altimeter
29.95 inHg
Observed at
TYS, 15 nm away

Docket · 7

The files NTSB released with the investigation on September 8, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 424 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.