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Accidents · NTSB DEN08LA127 · Final report

Schempp-Hirth Ventus A accident near Midlothian, Texas, July 23, 2008

On July 23, 2008 at about 5:25 pm local time, a Schempp-Hirth Ventus A (glider), registered N47JD, was destroyed in an accident during maneuvering near Midlothian, Texas (Texas Soaring Assoc Gliderport airport). It was a personal flight under general aviation rules (Part 91). 1 person was killed. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The pilot's inability to maintain aircraft control due to an incapacitating cardiac event. Contributing to the accident was the pilot's poor decision to fly with known serious medical issues.

Source: NTSB aviation accident database, copy made November 2, 2026. Docket and reports at the NTSB.

What the record shows

Date
July 23, 2008 · about 5:25 pm local time · cases in 2008
Place
Midlothian, Texas · Texas Soaring Assoc Gliderport · cases near this airport · map
Type
Accident
Injuries
1 person was killed.
Weather
visual conditions (good weather)
Aircraft
Schempp-Hirth Ventus A · all Ventus As on the register
Registration
N47JD · registry record · serial 29
Damage
Destroyed
Flight
Personal flight · general aviation rules (Part 91)

The NTSB's narrative final · quoted from the NTSB record

Witnesses to the accident said the glider appeared to be flying normally when it suddenly pitched up and down, then flew into the ground. This was substantiated by flight data from an onboard recorder. The pilot was fatally injured and portions of the glider's wings and empennage were seperated from the fuselage. The pilot was an 11 time national soaring champion with approximately 50 years experience flying gliders and airplanes. The pilot had very recent symptoms, recent test results, and autopsy findings consistent with serious coronary artery disease. He also had abnormal rhythms on ECG monitoring that would have likely increased his risk of sudden death. The pilot was in the process of scheduling a cardiac catheterization and possible angioplasty. He may have been impaired or incapacitated by pain, an abnormal heart rhythm, or sudden cardiac death. The circumstances of the accident are consistent with an abrupt physical inability to continue controlling the aircraft.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

What happened, in order

  1. Unknown or undetermined during maneuvering
  2. Loss of control in flight during maneuvering defining event
  3. Collision with terrain or object (not controlled flight into terrain) during maneuvering

The NTSB's findings

  • factor Personnel issues › Physical › Health/Fitness › Predisposing condition › Pilot
  • factor Personnel issues › Action/decision › Info processing/decision › Decision making/judgment › Pilot
  • factor Personnel issues › Physical › Impairment/incapacitation › Cardiovascular › Pilot
  • cause Aircraft › Aircraft oper/perf/capability › Performance/control parameters › (general) › Not attained/maintained
  • Environmental issues › Physical environment › Terrain › (general) › Effect on equipment

Pilot

  • Certificate: airline transport pilot, commercial pilot
  • Ratings: multi-engine land; multi-engine sea; single-engine land; single-engine sea; instrument: airplane; rotorcraft: glider
  • Flight time: 10,633 hours in all
  • Medical certificate: Class 2 (with waivers/limitations)
  • Seat: sngl
  • Injury: fatal

The aircraft

  • Airframe total time: 5,009 hours
  • Last inspection: inspection type not recorded, April 1, 2008
  • Seats: 1
  • Landing gear: fixed

The flight

  • Departed from: TA11 Tsa Gliderport TX at 5:00 pm
  • Flight plan: none

Weather at the time

  • Light: daylight
  • Wind: from 100° at 8 knots
  • Visibility: 10 statute miles
  • Sky: scat at 4,000 ft
  • Temperature: 90°F (32°C), dew point 68°F (20°C)
  • Altimeter: 29.98 inHg
  • Observation at 5:45 pm from KJWY

Injuries

FatalSeriousMinorNone
Flight crew1

Documents from the investigation the NTSB's docket: the evidence folder behind the report

The NTSB has not released the docket for this case yet. The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), is usually released when the investigation is nearly complete, and the list here is refreshed when it appears. Check at the NTSB.

Connections how this case links to the rest of the register

Aircraft
Place

The whole map of how records connect · these connections as data: /graph/accident/DEN08LA127.json.

The bigger picture in Aviation Analytics: accidents over time since 1982, by model, by phase of flight and conditions, by place and on the map.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text does not name anyone involved, its policy at this time. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.