# NTSB ANC84LA047: Cessna 170B, N3927V, Fairbanks, AK, March 18, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 18, 1984, 14:45 local (18:45 UTC)
- Place: Fairbanks, AK
- Coordinates: 64.809745, -147.719894 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=64.8097&lon=-147.7199&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4275
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC84LA047
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4275/pdf
- Page: https://openairdocs.org/ntsb/ANC84LA047

## Sequence of events

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

- Loss of control - on ground/water, landing - roll
  - unsuitable terrain or takeoff/landing/taxi area - selected, pilot in command (cause)
  - terrain condition - icy (contributing factor)
  - terrain condition - snow covered (contributing factor)
  - terrain condition - icy (contributing factor)
  - directional control - not possible, pilot in command
  - ground loop/swerve - uncontrolled, pilot in command
- Nose over, landing - roll

## Analysis

THE PLT LANDED ON HARD PACKED SNOW ON A GLACIER. SOME OF THE CRUSTED SNOW GAVE IN AND THE ACFT SWERVED TO THE LEFT WHILENOSING OVER.

## Aircraft

- Registration: N3927V (not matched to a registry record)
- Reported make and model: CESSNA 170B
- Category: Airplane
- Serial number: 18246
- Airframe hours: 1700
- Engines: CONTINENTAL C-145 145 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Jim Munsell
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, June 8, 1983, 68 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 33; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 228 total, 163 in this make and model, 151 as pilot in command, 14 in the last 90 days, 7 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 160 statute miles
- Lowest ceiling: none
- Temperature: 25 °F, dew point 5 °F
- Altimeter: 29.00 inHg

## 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 19840318007349A](https://openairdocs.org/incident/19840318007349A), Mar 18, 1984: Cessna 170B, Fairbanks, AK, Substantial damage. A ski broke through the surface while landing on a glacier. Aircraft flipped over.

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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