SEA94LA015

NTSB accident investigation · Varga 2150A · Burns, OR · October 10, 1993

Accident · FatalLimited investigationFinal report
Date
October 10, 1993, 08:05 local (15:05 UTC)
Place
Burns, OR
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N5074VVarga 2150A
Weather
Visual (VMC) · Day
Status
Completed · report September 26, 1994
Report
Approved by Office Director
FAA report
19931010038369A
Case key
41840

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

Poor in-flight planning/decision and an inadvertent stall/spin. A factor to the accident was an excessive pull-up.

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 flightManeuvering
In-flight planning/decision - poorPilot in commandCause
Pull-up - excessivePilot in commandFactor
Stall/spin - inadvertentPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

While maneuvering over the airstrip at low level and high speed, witnesses observed the airplane suddenly pull nearly straight up and hold a high angle of attack until the airplane would not climb any further. The nose of the airplane then dropped and it started a spin to the left. The airplane remained in this attitude until collision with the terrain. No evidence was found to indicate a mechanical failure or malfunction.

Factual narrative

History of flight

On October 10, 1993, at 0805 Pacific daylight time, a Varga 2150A, N5074V, collided with the terrain shortly after takeoff from a private airstrip located 70 miles south of Burns, Oregon. Visual meteorological conditions prevailed at the time and no flight plan was filed for the local flight. The airplane was destroyed and the certificated private pilot, the sole occupant, was fatally injured.

Some witnesses at the fly-in reported that the airplane had just taken off, while others stated that the airplane had made a few low passes over the airstrip. During the last pass, all of the witnesses stated that the airplane was travelling at a high rate of speed (approximately 100 miles per hour) and low level, when it suddenly pulled nearly straight up and attained an altitude of several hundred feet. The witnesses stated that it kept climbing at a high angle of attack until it seemed to stop climbing. The nose of the airplane then dropped and the attitude of the airplane momentarily leveled off horizontal to the ground. The nose of the airplane then dropped near vertical to the horizon and the airplane spun to the left. The airplane collided with the terrain in a nose down attitude. One witness reported that the engine was at idle power during the descent, while another reported that the engine was "wide open."

Personnel information

The pilot's flight logbook indicates that the first flight in the Varga was on October 8, 1991, and all flights since that date were in the Varga. The last logged flight was on October 1, 1992. At that time, the logbook indicates a total flight time of 302 hours in all types of airplanes. The total flight time in the Varga was listed as 42 hours.

In a written statement, a friend of the pilot's stated that in the past year he had flown with the pilot approximately 20 to 25 hours, with 10 hours in the last 90 days prior to the accident.

The Federal Aviation Administration Medical records indicate that the pilot held a Class III medical certificate dated October 22, 1990, with a limitation for corrective lenses. On October 23, 1992, the pilot was denied the reissuance of a medical certificate due to evidence of coronary artery disease. The FAA does not show an update to the October 23, 1992, medical records.

Wreckage and impact information

A Federal Aviation Administration Inspector from the Hillsboro, Oregon, Flight Standards District Office inspected the airplane and reported that control continuity was established from the elevator to the cockpit controls. The tubing was bent and one break in the system was noted near the center of the airplane. The elevators were free to move and unobstructed.

The engine was examined and found that the propeller broke away as a unit from the crankshaft in the area of the front main bearing. The propeller blades were straight. Further examination did not reveal evidence to indicate a mechanical failure or malfunction.

Medical and pathological information

The autopsy was performed by the Central Oregon Pathology Consultants, Bend, Oregon. The report stated that the heart was severely damaged and evaluation of the coronary arteries was not possible.

Toxicological samples were sent to the Federal Aviation Administration Civil Aeromedical Institute, Oklahoma City, Oklahoma, for analysis. The result of the analysis was negative findings.

Aircraft

Registration
N5074V
Reported as
Varga 2150A
Category
Airplane
Serial number
VAC-63-76
Engine
Lycoming O-320-A2C, 150 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Operator
Grimm, Thomas E.
Registered owner
Grimm, Thomas E.
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
Annual · February 23, 1993

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
53
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Expired
Seat
Left
Toxicology
Performed
Flight hours
302 total · 42 in this make and model · 258 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
40° at 3 knots
Visibility
40 statute miles
Lowest ceiling
10,000 ft broken
Temperature
48 °F, dew point 37 °F
Altimeter
30.00 inHg
Observed at
BNO, 70 nm away

Docket · 4

The files NTSB released with the investigation on June 6, 1995, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.2 MB 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 N5074V · 1

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