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Accidents · NTSB ANC92LA056 · Final report

Cessna 150 accident near Kalskag, Alaska, April 1, 1992

On April 1, 1992 at about 4:30 am local time, a Cessna 150, registered N11140, was substantially damaged in an accident near Kalskag, Alaska. 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 PILOT'S FAILURE TO MAINTAIN CONTROL OF THE AIRPLANE AS A RESULT OF HIS PHYSICAL IMPAIRMENT DUE TO ALCOHOL. A FACTOR WAS THE DARK NIGHT.

Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.

What the record shows

Date
April 1, 1992 · about 4:30 am local time
Place
Kalskag, Alaska · map
Type
Accident
Injuries
2 people were killed.
Weather
visual conditions (good weather)
Aircraft
Cessna 150 · all 150s on the register
Registration
N11140 · registry record · serial 15075217
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

THE PILOT HAD LANDED AT THE KALSKAG AIRPORT EARLIER - SOMETIME AFTER 2200 - AND WAS OBSERVED DRINKING HEAVILY FROM A BOTTLE WHICH WAS FINISHED AND THROWN AWAY. HE THEN TOOK ANOTHER FIFTH OF WHISKEY OUT FROM BEHIND HIS SEAT. THE PASSENGER ASKED THE PILOT TO FLY HER TO RUSSIAN MISSION. THE PILOT STATED HE WANTED TO SOBER UP FIRST. THE PASSENGER COAXED THE PILOT 'LIKE CRAZY' INTO TAKING HER. THE PILOT THEN TOOK THE OPEN FIFTH FROM BEHIND HIS SEAT AND PUT IT IN THE PASSENGER'S LAP. HE THEN AGREED TO FLY HER TO RUSSIAN MISSION. AT 0200 AN ELT SIGNAL WAS PICKED UP BY A SATELLITE. THE AIRPLANE HAD CRASHED ON A FROZEN LAKE 12 MI WEST OF KALSKAG. DAMAGE WAS CONSISTENT WITH A HIGH SPEED, NOSE LOW IMPACT. THE PILOT'S BLOOD ALCOHOL LEVEL WAS 209 MG/DL, AND A 0.035 UG/ML LEVEL OF TETRAHYDROCANNABINOL CARBOXYLIC ACID (MARIJUANA) WAS ALSO DETECTED IN HIS BLOOD. THE PASSENGER'S BLOOD ALCOHOL LEVEL WAS 95 MG/DL.

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: student
  • Medical certificate: Class 3 (valid medical--no waivers/lim.)
  • Seat: left

The aircraft

  • Last inspection: inspection type not recorded, January 2, 2000
  • Maximum gross weight: 1,600 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Continental O-200-A (piston); 0 hours total

The flight

  • Destination: RSH Russian Mission AK
  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: night, dark
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 25°F (-4°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.

About this page

Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The documents and photographs are the NTSB's docket, the folder of records gathered during the investigation, shown as the NTSB released them (the NTSB redacts some personal details first) and listed under the NTSB's own titles. This site's own text never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number ANC92LA056.