ATL98FA063

NTSB accident investigation · William Sargent Lancair 235 · Newport, TN · April 17, 1998

Accident · FatalField investigationFinal report
Date
April 17, 1998, 16:00 local (20:00 UTC)
Place
Newport, TN
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Unknown
Aircraft
N813YWilliam Sargent Lancair 235
Weather
Day
Status
Completed · report February 16, 2001
Report
Approved by Office Director
Case key
3932

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 attempt to operate in instrument meteorological conditions and his failure to maintain clearance with the surrounding terrain. Contributing factors were clouds and the mountainous/hilly terrain.

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 weatherUnknown
Weather condition - cloudsFactor
Vfr flight into imc - attemptedPilot in commandCause
In flight collision with terrain/waterUnknown
Terrain condition - mountainous/hillyFactor
Clearance - not maintainedPilot in commandCause

Analysis

The circumstances of the flight and of the accident are not known. On the afternoon of April 18, 1998, the Rescue Coordination Center received an Emergency Locator Transmitter (ELT) signal from the vicinity of the accident site. A search conducted by the Civil Air Patrol (CAP) and local authorities located the aircraft wreckage on the morning of April 19, 1998. According to local authorities, at the approximate time of the ELT signal, low clouds obscured the tops of the mountains in the immediate vicinity of the accident site (3,100 feet above mean sea level). A search of FAA records failed to show that the pilot had received a preflight weather briefing. An examination of the accident site disclosed that the airplane was broken into three pieces and the wreckage path was orientated on a 170-degree magnetic heading. Aircraft wreckage debris was scattered over an area about 150 feet long and 50 feet wide. The airplane wreckage rested on a steep mountain ridge with near vertical drop-offs on both sides of the ridge. The wreckage was never removed from the accident site.

Factual narrative

History of Flight

On April 17, 1998, at 1600 eastern daylight time, a William E. Sargent Lancair 235, N813Y, collided with a mountain ridge at the 3100 foot level of "Buzzard Roost" near Newport, Tennessee. The personal flight, operated by the pilot, under the provisions of Title 14 CFR Part 91 with no flight plan filed. According to weather data recovered from the nearest weather reporting facility, visual weather conditions prevailed at the approximate time of the accident. The airplane was destroyed. The private pilot and his passenger were fatally injured. According to a witness at the St. Clair International Airport in Port Huron, Michigan, the flight departed the airport at 0832.

The circumstances of the flight and of the accident are not known. On the afternoon of April 18, 1998, the Rescue Coordination Center received an Emergency Locator Transmitter (ELT) signal from the vicinity of Newport, Tennessee. A search conducted by the Civil Air Patrol (CAP) and local authorities located the aircraft wreckage on the morning of April 19, 1998. According to local authorities, at the approximate time of the ELT signal, there were low clouds and the tops of the mountains were obscured in the immediate vicinity of the accident site. There were no eyewitnesses to the accident.

Personnel information

The pilot held a private pilot certificate with a single engine land airplane rating. The pilot completed a third class medical examination on October 23, 1997. The pilot completed a biennial flight review, in the Lancair 235 airplane, approximately six months before the accident. A review of the pilot flight records disclosed that he had accumulated a total of 1,060 hours. Additional information about the pilot is located on page 3 of the factual report under the "First Pilot Information" data field.

Aircraft information

An annual inspection on the airplane was completed on October 10, 1998. The airplane had 700 total flight hours on the airframe. Additional information about the airplane is located on page 2 of the factual report under the "Aircraft Information" data field.

Meteorological information

A review of weather data from the nearest reporting facility disclosed that visual conditions prevailed at the time of the accident. The accident site is approximately 35 miles east of the Mcghee Tyson Airport. The field elevation at the Mcghee Tyson Airport is 981 feet. The field elevation at the accident site is 3100 feet. Additional weather data is located on pages 3 and 4 of the factual accident report, under the "Weather Information data field. There was no record of the pilot receiving a preflight weather briefing before this flight. Reportedly, low clouds obscured the tops of the mountains in the vicinity of the accident site.

Wreckage and impact information

An examination of the accident site disclosed that the airplane was broken into three pieces and the wreckage path was orientated on a 170-degree magnetic heading. Aircraft wreckage debris was scattered over an area about 150 feet long and 50 feet wide. The airplane wreckage rested on a steep mountain ridge with near vertical drop-offs. The extreme vertical component of the terrain, prevented an onsite wreckage examination. The wreckage was never removed from the accident site, and no subsequent wreckage examination was conducted.

Medical and pathological information

According to Dr. C. Blake, the postmortem examination of the pilot was conducted by Dr. C. Blake at his office in Morristown, Tennessee. Toxicological examinations were negative for drugs and alcohol.

Additional information

A search of the Federal Aviation Administration air traffic system failed to disclose air traffic records of the pilot receiving air traffic services for this flight.

Aircraft

Registration
N813Y
Reported as
William Sargent Lancair 235 (LANCAIR 23)
Category
Airplane, amateur-built
Serial number
85
Airframe hours
700
Engine
Lycoming O-235-L2C, 115 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
William E. Sargent
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · October 10, 1997 · 16 hours before
Departed
PHN · Port Huron, MI
Destination
LAL · Lakeland, FL

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
57
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
1,060 total · 390 in this make and model · 1,013 as pilot in command · 4 in the last 90 days · 1 in the last 30 days

Weather

Conditions
Day
Wind
300° at 3 knots
Visibility
10 statute miles
Lowest ceiling
3,500 ft broken
Temperature
63 °F, dew point 50 °F
Altimeter
30.00 inHg
Observed at
TYS, 43 nm away