# NTSB ANC92LA056: Cessna 150, N11140, Kalskag, AK, April 1, 1992

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Limited investigation · Final report
- Date: April 1, 1992, 00:30 local (04:30 UTC)
- Place: Kalskag, AK
- Coordinates: 61.609096, -160.200317 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=61.6091&lon=-160.2003&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed, report December 16, 1993
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5708
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC92LA056
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5708/pdf
- Page: https://openairdocs.org/ntsb/ANC92LA056

## Probable cause

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.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of control - in flight, cruise
  - light condition - dark night (contributing factor)
  - aircraft control - not maintained, pilot in command (cause)
  - impairment(alcohol), pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

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.

## Aircraft

- Registration: [N11140](https://openairdocs.org/deregistered/N11140-1993-07-21), registration cancelled 1993-07-21, S/N 15075217 (OpenAirDocs)
- Reported make and model: CESSNA 150
- Registry model: [Cessna 150L](https://openairdocs.org/model/cessna-150l) (registry code 2071826) (OpenAirDocs)
- Category: Airplane
- Serial number: 15075217
- Engines: CONTINENTAL O-200-A 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Fred C. Holmberg
- Registered owner: Fred C. Holmberg
- Airworthiness certificate: Standard, Normal
- Last inspection: Unknown, January 2, 2000
- Destination: RSH, RUSSIAN MISSION, AK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 32; student; medical: class 3, valid medical--no waivers/lim.; seat: left; toxicology performed

## Weather

- Conditions: Visual (VMC), Night/dark
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 25 °F

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19920401007839A](https://openairdocs.org/incident/19920401007839A), Apr 1, 1992: Cessna 150L, Kalskag, AK, Substantial damage, 2 fatal. Intoxicated pilot and passenger departed at night. Lost control en route. Near vertical impact. Marijuana positive.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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