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Accidents · NTSB FTW83FA299 · Preliminary: the investigation is not finished

Aero Commander 680-F accident near Norman, Oklahoma, June 28, 1983

On June 28, 1983 at about 1:19 pm local time, a Aero Commander 680-F, registered N6139X, was destroyed in an accident near Norman, Oklahoma (Westheimer airport). It was a personal flight under general aviation rules (Part 91). 2 people were killed. 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
June 28, 1983 · about 1:19 pm local time
Place
Norman, Oklahoma · Westheimer · map
Type
Accident
Injuries
2 people were killed.
Weather
visual conditions (good weather)
Aircraft
Aero Commander 680-F · all 680-Fs on the register
Registration
N6139X · no longer on the register · serial 680F-920-2
Damage
Destroyed
Flight
Personal flight · general aviation rules (Part 91)

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

THE ACFT CRASHED AFTER STARTING A GO-AROUND OR ABORTED LANDING AT NORMAL OK. THE ACFT WAS ON A X-COUNTRY FROM DALLAS TO WICHITA. THERE WAS NO RADIO COMMUNICATION WITH THE ACFT AFTER IT WAS CLEARED TO LAND. THE APPROACH LOOKED OK BUT ON SHORT FINAL THE ACFT SUDDENLY TURNED RIGHT, LEVELED THEN ENTERED A STEEP CLIMBING RIGHT TURN AND CONTINUE TO ROLL UNTIL INVERTED THEN PITCHED NOSE DOWN UNTIL CRASHING. THE PLT IN THE RIGHT SEAT HAD REPORTEDLY WORKED LATE THE NIGHT BEFORE INSTALLING WHAT APPEARED TO BE AN AUX FUEL SYSTEM IN THE CABIN. THE ACFT HAD JUST BEEN SOLD AND THE IDENTITY AND LOCATION OF THE OWNER WAS NOT ESTABLISHED. NO ONE CLAIMED THE WRECKAGE. EVIDENCE REVEALED THAT BOTH PROPELLERS WERE ROTATING AT HIGH RPM AT IMPACT. THE FIRE AFTER IMPACT BURNED MOST INTENSELY AND PERSISTANTLY IN THE CENTER OF THE CABIN WHERE THE REMAINS OF WHAT APPEARED TO BE AN AUX FUEL SYSTEM WERE FOUND. NO PRE-IMPACT MALFUNCTONS OR FAILURES WERE FOUND.

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: private
  • Ratings: single-engine land
  • Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
  • Seat: left

The aircraft

  • Last inspection: inspection type not recorded
  • Maximum gross weight: 8,000 lb
  • Seats: 4
  • Landing gear: retractable
  • Engine: Lycoming IGSO-540-B1A (piston); 0 hours total
  • Fire on the ground

The flight

  • Departed from: DAL Dallas TX
  • Destination: ICT Wichita KS
  • Flight plan: none
  • Runway 17, 3,000 ft by 200 ft
  • A second pilot was aboard

Weather at the time

  • Light: night, dark
  • Wind: from 160° at 10 knots
  • Visibility: 15 statute miles
  • Sky: broken clouds at 8,000 ft; scat at 4,000 ft
  • Temperature: 0°F (-18°C), dew point 0°F (-18°C)
  • Altimeter: 29.00 inHg
  • Observation at 1:30 pm from OKC, 25 miles away

Injuries

FatalSeriousMinorNone
Crew2

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.