# NTSB ANC93LA024: Cessna 207A, N7373U, Scammon Bay, AK, January 5, 1993

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: January 5, 1993, 14:10 local (18:10 UTC)
- Place: Scammon Bay, AK
- Coordinates: 61.789299, -165.960906 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=61.7893&lon=-165.9609&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor, 3 uninjured
- Status: Completed, report December 3, 1993
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5859
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC93LA024
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5859/pdf
- Page: https://openairdocs.org/ntsb/ANC93LA024

## Probable cause

THE PILOTS FAILURE TO FOLLOW VFR PROCEDURES.  A FACTOR WAS THE WHITEOUT SNOW CONDITION.

## Analysis

DURING A LONG STRAIGHT IN APPROACH THE AIRPLANE COLLIDED WITH THE TERRAIN APPROXIMATELY 2 MILES SHORT OF THE RUNWAY, DURING WHITEOUT SNOW CONDITIONS.  THE PILOT SAID THERE WAS NO GROUND VEGETATION TO GIVE HIM A DEPTH PERCEPTION, AND THAT HE WAS MAINTAINING A CONSTANT INDICATED ALTITUDE USING HIS ALTIMETER.

## Sequence of events

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

- In flight collision with terrain/water, approach - vfr pattern - final approach
  - weather condition - whiteout (contributing factor)
  - vfr procedures - not followed, pilot in command (cause)

## Aircraft

- Registration: [N7373U](https://openairdocs.org/aircraft/N7373U), registered now, S/N 20700423, built 1977 (OpenAirDocs)
- Reported make and model: CESSNA 207A
- Registry model: [Cessna 207A](https://openairdocs.org/model/cessna-207a) (registry code 2073604) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 20700423
- Airframe hours: 3080
- Engines: CONTINENTAL IO-520-F 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 135
- Operator: Hageland Aviation Services,Inc
- Registered owner: Gussic Ventures
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, December 26, 1992, 8 hours before
- Departed: MOU, MOUNT. VILLAGE, AK
- Flight plan: Company VFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 41; commercial, airline transport; airplane ratings: multi-engine sea, single-engine sea, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: left; toxicology performed; flight hours: 12,800 total, 4,000 in this make and model, 12,500 as pilot in command, 234 in the last 90 days, 47 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Instrument (IMC), Day
- Wind: 150° at 10 knots
- Visibility: 3 statute miles
- Lowest ceiling: 800 ft overcast
- Temperature: 30 °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 19930105000159A](https://openairdocs.org/incident/19930105000159A), Jan 5, 1993: Cessna 207A, Scammon Bay, AK, Substantial damage. Encountered white out near destination. Had airport insight but flew into deep snow short of airport.

## Other investigations on N7373U (1)

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.

- [NTSB ANC02LA019](https://openairdocs.org/ntsb/ANC02LA019), Mar 1, 2002: Cessna 207A (N7373U), Kotlik, AK, substantial damage. Probable cause: The failure of the pilot-in-command to maintain the proper glide path to the runway during the final approach for a VFR landing.

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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