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Accidents · NTSB ANC91FA115 · Final report

Cessna A185F accident near Amitchiak Lake, Alaska, August 1, 1991

On August 1, 1991 at about 11:15 pm local time, a Cessna A185F, registered N1687M, was substantially damaged in an accident near Amitchiak Lake, Alaska. It was a business 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 PILOT'S FAILURE TO MAINTAIN THE AIRPLANE'S AIRSPEED ABOVE STALLING; THEREBY LOSING CONTROL. FACTORS CONTRIBUTING TO THE ACCIDENT WERE THE MOUNTAINOUS TERRAIN, THE MOUNTAIN WAVE, AND INSUFFICIENT ALTITUDE FROM WHICH TO RECOVER.

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

What the record shows

Date
August 1, 1991 · about 11:15 pm local time
Place
Amitchiak Lake, Alaska
Type
Accident
Injuries
2 people were killed.
Weather
visual conditions (good weather)
Aircraft
Cessna A185F · all A185Fs on the register
Registration
N1687M · no longer on the register · serial 18501874
Damage
Substantial damage
Flight
Business flight · general aviation rules (Part 91)

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

AMITCHIAK LAKE IS LOCATED IN A MOUNTAIN VALLEY WITH A FIELD ELEVATION OF 2,500 FEET. THE WIND WAS BLOWING FROM THE NORTH, NORTHWEST. THE AIRPLANE TOOK OFF INTO THE WIND AND HAD TO MAKE A TURN TO AVOID RISING TERRAIN. THE TAKEOFF AREA WAS DIRECTLY DOWNWIND OF RISING TERRAIN. ACCORDING TO THE WITNESS, THE AIRPLANE BANKED TO THE LEFT AND WAS FLYING IN A SOUTH, SOUTHWESTERLY DIRECTION OVER THE WATER WHEN THE AIRPLANE'S NOSE WENT DOWN AND THE AIRPLANE NOSED INTO THE WATER. EXAMINATION OF THE AIRPLANE WRECKAGE SHOWED NO MECHANICAL IRREGULARITY WITH THE FLIGHT CONTROLS, ENGINE, AND OTHER SYSTEMS ON THE AIRPLANE.

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; single-engine sea; instrument: airplane
  • Flight time: 5,000 hours in all; 30 in the last 90 days
  • Medical certificate: Class 3 (valid medical--no waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 3,980 hours
  • Last inspection: annual inspection, March 28, 1991; 200 hours since
  • Maximum gross weight: 3,350 lb
  • Seats: 4
  • Landing gear: fixed
  • Engine: Continental IO-520-F (piston); 0 hours total

The flight

  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Wind: from 360° at 20 knots, gusting 30
  • Visibility: 15 statute miles
  • Sky: overcast at 10,000 ft; not recorded
  • Temperature: 50°F (10°C), dew point 0°F (-18°C)

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.