IAD99LA061

NTSB accident investigation · Schleicher ASW-19 · Bedminster, NJ · August 29, 1999

Accident · FatalLimited investigationFinal report
Date
August 29, 1999, 14:28 local (18:28 UTC)
Place
Bedminster, NJ
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N19DQSchleicher ASW-19
Weather
Visual (VMC) · Day
Status
Completed · report May 17, 2001
Report
Approved by Office Director
FAA report
19990829025319A
Case key
47215

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 medical incapacitation after suffering a massive stroke.

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
Aircraft control - not possiblePilot in command
Incapacitation(stroke)Pilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled
Object - tree(s)

Analysis

The glider was observed by witnesses and other aircraft, both in the air and on the airport surface. One witness described the glider's flight as 'wandering' and that the glider did not make use of the available thermal lift. The glider then approached the airport, but was not configured correctly for landing. A doctor who witnessed the accident and responded to the crash site said: 'The glider came over, swerved to the left, swerved to the right, then struck trees. He was about half a mile from where he should have landed. It looked like he lost control.' The glider was destroyed, but the cockpit area was intact. The doctor examined the pilot, who had only minor injuries, and diagnosed a Cerebral Vascular Accident. The pilot was transported to the hospital where he died. According to the State's Medical Examiner, the pilot died as a result of a massive stroke.

Factual narrative

On August 29, 1999, at 1428 eastern daylight time, a Schleicher ASW-19 glider, N19DQ, was substantially damaged during collision with trees and terrain at the Somerset County Airport (SMQ), Bedminster, New Jersey. The certificated commercial pilot received minor injuries during the collision, but died shortly thereafter. Visual meteorological conditions prevailed for the personal flight that originated at SMQ approximately 1400. No flight plan was filed for the flight conducted under 14 CFR Part 91.

In a written statement, a witness said he helped the pilot assemble the glider for flight. Later, while flying, the witness observed the accident glider on tow. He said:

"When I next saw the glider, we were both at approximately 2,000 feet agl at the west side of the airport. His flight path indicated that he was just wandering around. He wasn't stopping to thermal even when he clearly flew into lift; and I couldn't figure out why he was already down to that altitude. I spiraled down to 1,000 feet agl and started my landing pattern. I then saw [the glider] again at the east side of the airport. I was at 600 feet agl and he was about 1,000 feet agl. I completed my landing and came to a stop about 1/2 way down runway 26. I then saw [the pilot] make a final approach for landing.

"He looked like he was in the right position but at no time did he deploy his spoilers. He passed over me at treetop height (70 to 80 feet agl) still moving at approximately approach speed. I saw a minor oscillation upward and then he seemed to go nose down, as if to put the ship down to the runway. He then disappeared from my view below a rise in the runway and I thought he made it till I heard the crash.

"There was [a medical doctor] on scene when I got there. His evaluation was a CVA (Cerebral Vascular Accident) before the crash while he was still flying. As a former EMT Instructor, I did notice that there was right side facial droop and no movement on his right side. [The pilot] was able to wink at me at one point and to squeeze my hand. Both with his left side."

The doctor who witnessed the accident and responded to the crash site provided an interview by telephone. He said:

"I was finishing my checkride and coming in with my instructor. We were taxiing back after landing. The glider came over, swerved to the left, swerved to the right, then struck trees. He was about half a mile from where he should have landed. It looked like he lost control. I then took off out of the plane.

"When I got there, the only thing in one piece was the cockpit. I talked to him. He was disoriented. I noticed he didn't move his right side at all. He presented to me a receptive aphasia. He kept trying to undo his seatbelt. He couldn't move his right side at all.

"Somebody handed me a stethoscope. His heart sounded good and his lungs were clear. He appeared to have had a CVA. The clincher was the right side of his face drooped."

The pilot was transported to the Morristown Hospital in Morristown, New Jersey, where he died.

In a telephone interview, a New Jersey State Medical examiner said that examination of the pilot revealed only minor cuts and contusions and no internal injuries. He said the pilot sustained "...a massive stroke in the left side of the brain."

The Federal Aviation Administration Toxicology Accident Research Laboratory, Oklahoma City, Oklahoma performed toxicological testing on November 17, 1999.

Aircraft

Registration
N19DQ
Reported as
Schleicher ASW-19
Category
Glider
Serial number
19059
Engine
unknown
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Mcvey Graham
Airworthiness certificate
Special, Experimental (Special)
Departed
SMQ
Airport
SMQ · Somerset County Airport, runway 26, 2,200 × 100 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
72
Certificate
Commercial
Medical
Unknown, Unknown
Seat
Front
Toxicology
Performed

Weather

Conditions
Visual (VMC) · Day
Wind
340° at 9 knots, gusting 15
Visibility
10 statute miles
Lowest ceiling
None
Temperature
88 °F, dew point 63 °F
Altimeter
29.00 inHg
Observed at
SMQ

Docket · 2

The files NTSB released with the investigation on April 6, 2001, on NTSB’s docket system: statements, records, photos and specialists’ reports. 350 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.