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Accidents · NTSB DEN83FA072 · Preliminary: the investigation is not finished

Piper PA-28-181 accident near Evanston, Wyoming, March 6, 1983

On March 6, 1983 at about 2:16 am local time, a Piper PA-28-181, registered N8406F, was substantially damaged in an accident near Evanston, Wyoming. It was a personal flight under general aviation rules (Part 91). 1 person was killed and 1 person was seriously injured. 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
March 6, 1983 · about 2:16 am local time
Place
Evanston, Wyoming · map
Type
Accident
Injuries
1 person was killed and 1 person was seriously injured.
Weather
visual conditions (good weather)
Aircraft
Piper PA-28-181 · all PA-28-181s on the register
Registration
N8406F · no longer on the register · serial 28-8190267
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

WHEN EN ROUTE, THE ACFT COLLIDED WITH POWER LINES WHERE THEY CROSSED OVER A HIGHWAY ABOUT 39 FT AGL. TWO WITNESSES NEAR THIS LOCATION REPORTED THAT THE ACFT WAS FLYING LOW & WAS FOLLOWING THE HIGHWAY ON A WESTERLY HEADING WHEN THE ACFT STRUCK THE WIRES. THE WIRE STRIKE OCCURRED AS THE ACFT WAS STARTING TO CROSS A VALLEY ABOUT 8 MI WIDE. SUBSEQUENTLY, THE ACFT CRASHED INTO RISING TERRAIN ON THE OPPOSITE SIDE OF THE VALLEY. WITNESSES IN CARS NEAR THAT AREA STATED THAT THE ACFT WAS FLYING LOW OVER THE HIGHWAY & WAS ZIG-ZAGGING BACK & FORTH. JUST PRIOR TO CRASHING, THEY SAW THE ACFT GO INTO A STEEP BANK, THEN IT DISAPPEARED FROM THEIR VIEW AS IT WENT BEHIND A HILL. AN EXAM OF THE CRASH SITE REVEALED THAT THE ACFT WAS IN NEAR LEVEL FLT WHEN IT HIT TREES ON THE SIDE OF A HILL, THEN IT CRASHED INTO A 9 DEG RISING SLOPE. THE PLT WAS SERIOUSLY INJURED & COULD NOT RECALL THE FLT OR THE ACCIDENT. WITNESSES STATED THAT THE ACCIDENT OCCURRED ON A DARK NIGHT WITH LOW CEILINGS & WITH LIGHT SNOW FALLING.

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
  • Flight time: 526 hours in all; 200 in this make and model; 16 in the last 90 days; 480 as pilot in command
  • Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
  • Seat: unk

The aircraft

  • Airframe total time: 1,011 hours
  • Last inspection: 100-hour inspection, March 2, 1983; 112 hours since
  • Maximum gross weight: 2,450 lb
  • Seats: 4
  • Landing gear: fixed
  • Engine: Lycoming O-360-A4M (piston); 0 hours total
  • Fire on the ground

The flight

  • Departed from: COD Cody WY
  • Destination: OGD Ogden UT
  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: night, dark
  • Wind: from 360° at 10 knots, gusting 15
  • Visibility: 15 statute miles
  • Sky: overcast at 4,000 ft; not recorded
  • Temperature: 37°F (3°C), dew point 30°F (-1°C)
  • Altimeter: 29.00 inHg
  • Observation at 1:50 am from EVW, 18 miles away

Injuries

FatalSeriousMinorNone
Crew1
Passengers1

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.