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Accidents · NTSB DEN82FTC08 · Preliminary: the investigation is not finished

Cessna T210N accident near Near Laramie, Wyoming, August 5, 1982

On August 5, 1982 at about 8:30 pm local time, a Cessna T210N, registered N5433A, was substantially damaged in an accident near Near Laramie, Wyoming. It was a personal flight under general aviation rules (Part 91). 1 person had minor injuries; 3 others were unhurt. 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
August 5, 1982 · about 8:30 pm local time
Place
Near Laramie, Wyoming
Type
Accident
Injuries
1 person had minor injuries; 3 others were unhurt.
Weather
visual conditions (good weather)
Aircraft
Cessna T210N · all T210Ns on the register
Registration
N5433A · no longer on the register · serial 210-63435
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

THE PILOT REPORTED THAT ON A PREVIOUS FLIGHT, HE HAD AN ENGINE PROBLEM, IN WHICH, HE WAS UNABLE TO OBTAIN MORE THAN 27 TO 28 INCHES OF MANIFOLD PRESSURE. HE HAD THE ENGINE CHECKED, NO PROBLEM WAS FOUND THAT WOULD HAVE CAUSED THE LOSS OF MANIFOLD PRESSURE, AND ON TAKEOFF, IT WOULD REACH THE RED LINE. THE TAKEOFF WAS NORMAL AND A CLIMB WAS MADE TO 10,500 FT. ABOUT 35 MI FROM LARAMIE, WY, THE MANIFOLD PRESSURE DECREASED TO 17 TO 18 INCHES. UNABLE TO MAINTAIN ALTITUDE, THE PILOT ELECTED TO LAND ALONG A PIPE LINE. DURING THE LANDING ROLL, THE AIRCRAFT HIT A DITCH, THE NOSE GEAR FAILED AND THE PLANE FLIPPED OVER. AN INVESTIGATION REVEALED THAT THE BOSSES FOR THE #6 EXHAUST VALVE ROCKER ARM HAD FAILED, THE #6 INTAKE VALVE PUSH ROD HAD BROKEN AND ITS ROD TUBE WAS KNOCKED OUT OF ALIGNMENT.

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: 672 hours in all; 143 in this make and model; 10 in the last 90 days; 671 as pilot in command
  • Medical certificate: Class 3 (valid medical--no waivers/lim.)
  • Seat: unk

The aircraft

  • Airframe total time: 510 hours
  • Last inspection: inspection type not recorded; 14 hours since
  • Maximum gross weight: 3,800 lb
  • Seats: 6
  • Landing gear: retractable
  • Engine: Continental TSIO-520-R (piston); 0 hours total

The flight

  • Departed from: Rawlins WY at 2:00 pm
  • Destination: Denver CO
  • Flight plan: VFR
  • Runway 0

Weather at the time

  • Light: daylight
  • Visibility: 50 statute miles
  • Sky: not recorded; scat at 4,000 ft
  • Temperature: 194°F (90°C), dew point 0°F (-18°C)

Injuries

FatalSeriousMinorNone
Crew1
Passengers12

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.