MIA97LA202

NTSB accident investigation · DFL Holdings Tango · Keystone, FL · July 1, 1997

Accident · FatalLimited investigationFinal report
Date
July 1, 1997, 00:00 local (04:00 UTC)
Place
Keystone, FL
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Unknown
Aircraft
N772TDFL Holdings Tango
Weather
Visual (VMC) · Not reported
Status
Completed · report April 10, 1998
Report
Approved by Office Director
FAA report
19970701016639A
Case key
38305

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

an in-flight loss of control for undetermined reasons.

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 flightUnknown
Reason for occurrence undeterminedCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The pilot departed on a local flight and did not return. The wreckage was located the following day. Examination of the wreckage revealed the airplane collided with trees and terrain spinning to the left. Examination of the airframe, flight controls, engine assembly and accessories revealed no evidence of a precrash mechanical failure or malfunction. All components necessary for flight were present at the crash site.

Factual narrative

On July 1, 1997, at an undetermined time, an experimental DFL Holdings Inc., Model: Tango, N772T, operating as a 14 CFR Part 91 personal flight, crashed in the vicinity of Keystone, Florida. Visual meteorological conditions prevailed and no flight plan was filed. The airplane was destroyed and the airline transport rated pilot was fatally injured. The flight originated from Keystone Airpark at about 1330 eastern daylight time.

The airplane was reported as missing on July 1, 1997, and was located on July 2, 1997, in the northeast corner of restricted area 2903A.

Examination of the crash site revealed the airplane collided with trees in a nose down attitude with little horizontal movement spinning to the left. The left wing was bent slightly up, was attached at the forward portion of the wing, and separated 10 to 12 inches on the trailing part of the wing. The right wing tip bottom was found two feet forward of the right wing. The fuel tanks were ruptured and browning of the vegetation was present. Torsional twisting, "s" bending and chordwise scarring was present on the propeller blades. Tree branches found in the vicinity of the crash site exhibited 45-degree "v" cuts

Examination of the airframe, flight controls, engine assembly and accessories revealed no evidence of a precrash mechanical failure or malfunction. All components necessary for flight were present at the crash site. For additional information see FAA inspector's statement

Personnel who had known the pilot since college stated, he had the experience and talent to fly the tango airplane, but at times had shown less than good judgment performing maneuvers at low altitudes and buzzing at tree top level before and after joining the military. He was informed about the characteristics of the tango airplane, was instructed not to perform aerobatics, power on stalls, or spins, and to consider it as a low g aircraft. After initially flying the airplane the pilot informed them that the airplane did a great "pull close" maneuver.

Postmortem examination of the pilot was conducted on July 3, 1997, by Dr. Margarita Arruza, Associate Medical Examiner, Jacksonville, Florida. The cause of death was multiple injuries. Postmortem toxicology studies of specimens from the pilot were performed by the Forensic Toxicology Research Section, Federal Aviation Administration, Oklahoma City, Oklahoma. These studies were negative for basic, acidic, and neutral drugs. Ethanol 21.000 mg/dl was detected in the blood, 30.00 mg/dl ethanol was detected in the muscle fluid, 1.00 mg/dl acetaldehyde was detected in the muscle fluid, 16.000 acetaldehyde was detected in the blood, and 5.000 mg/dl n-propanol was detected in the blood.

The wreckage was released to MSG Ronald Watson, Provost Marshals Office, Camp Blanding, Florida, on July 11, 1997. The pilot log books were released to the deceased pilot's father, Dr. Richard K. Ames, on August 19, 1997.

Aircraft

Registration
N772T
Reported as
DFL Holdings Tango
Category
Airplane, amateur-built
Serial number
001
Engine
Lycoming O-360-A1A, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Dfl Holding Inc.
Airworthiness certificate
Special, Experimental (Special)
Departed
42J
Destination
GNV · Gainesville, 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
35
Certificates
Airline transport, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Toxicology
Performed
Flight hours
4,218 total · 3 in this make and model · 2,335 as pilot in command · 32 in the last 90 days · 22 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Not reported
Wind
350° at 7 knots
Visibility
10 statute miles
Lowest ceiling
25,000 ft broken
Temperature
90 °F, dew point 73 °F
Altimeter
29.00 inHg
Observed at
GNV

FAA reports on this event · 1

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