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Accidents · NTSB ANC85LA179 · Preliminary: the investigation is not finished

Cessna 207 accident near Chuathbaluk, Alaska, September 18, 1985

On September 18, 1985 at about 9:03 pm local time, a Cessna 207, registered N91157, was substantially damaged in an accident near Chuathbaluk, Alaska. It was a positioning flight under general aviation rules (Part 91). No one was hurt; 1 person was 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
September 18, 1985 · about 9:03 pm local time
Place
Chuathbaluk, Alaska · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Cessna 207 · all 207s on the register
Registration
N91157 · registry record · serial 20700096
Damage
Substantial damage
Flight
Positioning flight · general aviation rules (Part 91)

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

THE ACFT MADE AN EMERGENCY LANDING IN A RIVER AFTER AN ENG FAILURE DUE TO FUEL EXHAUSTION. THE PLT STATED THAT HE COULD NOT DETERMINE EXACT FUEL QUANTITY PRIOR TO TAKEOFF DUE TO A BROKEN CAP ON RIGHT FUEL TANK. THE OPERATOR TOLD THE PLT TO FLY THE ACFT DESPITE HIS KNOWLEDGE OF THE BROKEN FUEL CAP AND THE UNCERTAIN FUEL QUANTITY.

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: commercial pilot
  • Ratings: multi-engine land; single-engine land; instrument: airplane
  • Flight time: 1,451 hours in all; 35 in this make and model; 27 as pilot in command
  • Medical certificate: Class 2 (valid medical--no waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 5,417 hours
  • Last inspection: 100-hour inspection, December 1, 1984; 25 hours since
  • Maximum gross weight: 3,800 lb
  • Seats: 6
  • Landing gear: fixed
  • Engine: Continental IO-520 (piston); 0 hours total

The flight

  • Departed from: RDV Red Devil AK at 3:40 pm
  • Destination: ANI Aniak AK
  • Runway 0

Weather at the time

  • Light: daylight
  • Visibility: 100 statute miles
  • Sky: clear
  • Temperature: 0°F (-18°C), dew point 0°F (-18°C)

Injuries

FatalSeriousMinorNone
Crew1

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.

Other NTSB records under N91157 the same tail number, which may have belonged to a different aircraft at the time

2023-06-06CEN23LA231 · accident near Harlingen, TX · substantial damage · no injuries

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.