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ANC92FA022 · Cessna 207

22 Dec 1991 · MCGRATH, AK, United States

MarkAir Express Cessna 207 · Accident: in flight encounter with weather en route

From 5NI · NIKOLAI, AK to McGrath Airport (MCG)

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Event

NTSB case
ANC92FA022
Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
Completed
API-reported fatalities
1 · all aircraft and ground
Ground fatalities
0
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
General aviation
WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
Instrument Meteorological Cond

Cessna 207

Aircraft type
Cessna 207
Category
Airplane
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N6390H
Onboard fatalities
Unknown
Route
From 5NI · NIKOLAI, AKTo McGrath Airport (MCG), MCGRATH, AK
Aircraft age
Not recorded
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 91: General Aviation
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
En route · cruise
First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
In flight encounter with weather
Also codedOther events the NTSB coded in the sequence, such as a wire strike after a loss of power. Flight Findings uses them for its kinds of event. Glossary
Visual flight rules (VFR) flight into instrument meteorological conditions (IMC)
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Destroyed

Cause areas

  • Pilot in command › In-flight planning/decision, improper
  • Pilot in command › VFR flight into imc, attempted

Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.

NTSB narrative

THE WRECKAGE WAS LOCATED ON THE NORTHEAST SIDE OF HALFWAY MOUNTAIN HEADING APPROXIMATELY 270 DEGREES AT THE 1600 FOOT LEVEL. THE ACCIDENT SITE IS LOCATED WITHIN TWO MILES OF THE INITIAL APPROACH FIX FOR THE LOCALIZER/DME RUNWAY 16 APPROACH AT MCGRATH. THE MEA FOR THE DME ARC IS LISTED AS 3600 FEET ABOVE MEAN SEA LEVEL. THE SECTOR OBSTRUCTION CLEARANCE ALTITUDE IS LISTED AS 3100 FEET ABOVE MEAN SEA LEVEL. WEATHER FOR THE AREA, AIRMET SIERRA, INDICATED THAT MOUNTAIN TOPS WOULD BE OBSCURED AND THAT CEILINGS WOULD OCCASIONALLY BE 1500 FEET BROKEN. THERE WERE REPORTS OF SNOWSHOWERS IN THE AREA OF SUFFICIENT INTENSITY THAT WOULD NOT ALLOW THE SEARCH AIRCRAFT TO FLY THROUGH THE SNOWSHOWERS.

Probable cause

THE PILOT IN COMMAND'S IMPROPER INFLIGHT PLANNING/DECISION AND HIS ATTEMPT TO FLY VFR THROUGH IMC CONDITIONS. FACTORS CONTRIBUTING TO THE ACCIDENT WERE THE SNOW, WHITEOUT CONDITIONS, AND DARKNESS.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record ANC92FA022
Event ID
20001212X18530
Case number
ANC92FA022
Dataset
historical-pre2008
Source SHA-256
89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
  • Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
  • Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
  • The date is the local date, which is the same as the UTC date the NTSB stores.
  • API snapshot SHA-256: 7aaa71faffe9fd6d8ed2d5d268175ce0a80e11e5e7264302074d6dadf78b6042; retrieved 2026-09-21T01:26:37.933Z.