IAD97LA076

NTSB accident investigation · Dresbach RV-4 · Bainbridge, OH · May 26, 1997

Accident · FatalLimited investigationFinal report
Date
May 26, 1997, 11:44 local (15:44 UTC)
Place
Bainbridge, OH
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N61CDDresbach RV-4
Weather
Visual (VMC) · Day
Status
Completed · report April 15, 1999
Report
Approved by Office Director
FAA report
19970526011789A
Case key
28196

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

failure of the pilot to maintain control of the airplane during the initial climb after takeoff. The pilot's physiological conditions was a possible factor.

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 flightTakeoff - initial climb
Aircraft control - not maintainedPilot in commandCause
Physiological conditionPilot in command
In flight collision with terrain/waterDescent - uncontrolled

Analysis

Witnesses reported that they observed the airplane make a normal takeoff. According to them, after starting to climb, the airplane entered a descent and crashed. They reported seeing the airplane in a right-wing low position before it impacted the ground in a nose down attitude. Examination of the airplane and the engine did not reveal any abnormalities. The pilot's last log book entry was dated 11/22/95. On 11/29/95, he had coronary artery bypass surgery. On 5/15/97, the FAA Aeromedical Certification Division denied the pilot a medical certificate 'due to objective evidence of myocardial ischemia by radionuclide scintigraphy.' An autopsy report of the pilot noted 'minimal cardiac tissue' for examination. Toxicology testing detected unspecified levels of metoprolol (a medication which reduces the heart rate response to stress) in the pilot's blood and liver fluid.

Factual narrative

On May 26, 1997, at 1144 eastern daylight time, N61CD, a Dresbach RV-4, a homebuilt airplane, was destroyed when it collided with terrain after takeoff from the Haas Airport, Bainbridge, Ohio. The certificated private pilot was fatally injured. Visual meteorological conditions prevailed and a flight plan was not filed. The personal flight was conducted under 14 CFR Part 91. The flight had originated from the Ross County Airport, Chillicothe, Ohio.

The pilot was attending a fly-in breakfast at Bainbridge. He took off from a 1,900 foot long, grass strip. Witnesses reported that they observed the takeoff, and it seemed normal. They said that about 200 to 300 feet above the ground with the engine operating, the right wing of the airplane dropped down in a roll type maneuver, the nose pitched down, and the airplane struck the ground in a nose down attitude.

According to a Federal Aviation Administration (FAA) Safety Inspector, examination of the wreckage after the accident did not reveal any pre-impact failure of the airplane flight controls or engine.

Examination of the pilot's log book revealed that the last entry was dated November 22, 1995. According to the pilot's medical records, he underwent coronary artery bypass surgery on November 29, 1995. He was on Lopressor (metoprolol) 25 mg a day in June of 1996. His application for a third class medical certificate on June 27, 1996, was deferred by his Aviation Medical Examiner, and ultimately denied by the FAA Aeromedical Certification Division on May 15, 1997, "due to objective evidence of myocardial ischemia by radionuclide scintigraphy." He did not have a current medical certificate at the time of the accident.

An autopsy of the pilot was performed by Dr. John Gabis, Coroner, Chillicothe, Ohio, on May 27, 1997.

Toxicological testing was conducted by the FAA Civil Aeromedical Institute (CAMI), in Oklahoma City, Oklahoma. The report stated that metoprolol was detected in blood and liver fluid.

Aircraft

Registration
N61CD
Reported as
Dresbach RV-4
Category
Airplane, amateur-built
Serial number
1652
Engine
Lycoming O-320-D3G, 160 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Irwin W Dresbach
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · April 4, 1996
Departed
RZT · Chillicothe, OH
Airport
9I5 · Haas, runway 13, 1,920 × 90 ft, grass/turf

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
61
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Seat
Front
Toxicology
Performed
Flight hours
561 total · 75 in this make and model · 491 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
40° at 11 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
63 °F, dew point 45 °F
Altimeter
29.00 inHg
Observed at
CMH, 60 nm away

FAA reports on this event · 1

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