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Accidents · NTSB FTW83LA218 · Preliminary: the investigation is not finished

Bell 206B accident near Thorndale, Texas, May 4, 1983

On May 4, 1983 at about 5:15 pm local time, a Bell 206B (helicopter), registered N5747L, was substantially damaged in an accident near Thorndale, Texas. It was an aerial observation flight under general aviation rules (Part 91). No one was hurt; 3 people were on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
May 4, 1983 · about 5:15 pm local time
Place
Thorndale, Texas · map
Type
Accident
Injuries
No one was hurt; 3 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Bell 206B · all 206Bs on the register
Registration
N5747L · no longer on the register · serial 3079
Damage
Substantial damage
Flight
Aerial observation flight · general aviation rules (Part 91)

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

THE ACFT APPROACHED THE FIELD TO BE SURVEYED AND COLLIDED WITH A WIRE AT ABOUT 30 FT AGL. ACCORDING TO THE PLT DURING THE ACTUAL SURVEY THE ACFT IS HOVERED AT LOW ALT. WHEN THE PLT SAW THE WIRE AHEAD THE REPORTED AIRSPEED WAS ABOUT 20 KTSTHE COLLECTIVE WAS LOWERED ON IMPACT AND DURING SEVERE OSCILLATIONS THE PLT INITIATED A FLARE AND SECURED THE ENGINE. A HARD LANDING WAS MADE WHICH COLLAPSED THE SKIDS AND THE ACFT ROLLED OVER.

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

Pilot

  • Certificate: airline transport pilot, flight instructor, commercial pilot
  • Ratings: multi-engine land; single-engine land; instructor: helicopter; instrument: airplane; instrument: helicopter; rotorcraft: helicopter
  • Flight time: 1,652 hours in all; 980 in this make and model; 155 in the last 90 days; 1,601 as pilot in command; 11 on instruments
  • Medical certificate: Class 1 (valid medical--no waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 1,424 hours
  • Last inspection: 100-hour inspection, August 7, 1983; 21 hours since
  • Maximum gross weight: 3,200 lb
  • Seats: 5
  • Landing gear: fixed
  • Engine: Allison 250-C20B (turboshaft); 0 hours total

The flight

  • Departed from: Austin TX at 4:15 pm
  • Flight plan: VFR
  • Runway 0

Weather at the time

  • Light: daylight
  • Wind: from 190° at 10 knots
  • Visibility: 7 statute miles
  • Sky: clear
  • Temperature: 81°F (27°C), dew point 0°F (-18°C)
  • Altimeter: 30.00 inHg

Injuries

FatalSeriousMinorNone
Crew1
Passengers2

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

The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.

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 never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.