# NTSB ANC82DA086: Cessna 170, N2584V, Near Anchorage, AK, September 10, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: September 9, 1982, 17:00 local (Sep 10, 1982, 01:00 UTC)
- Place: Near Anchorage, AK
- Coordinates: 61.2205, -149.850189 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=61.2205&lon=-149.8502&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report September 9, 1983
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 71842
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC82DA086
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/71842/pdf
- Page: https://openairdocs.org/ntsb/ANC82DA086

## Sequence of events

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

- Loss of control - on ground/water, takeoff - roll/run
  - terrain condition - sand bar (contributing factor)
  - terrain condition - soft (contributing factor)
  - unsuitable terrain or takeoff/landing/taxi area - selected, pilot in command (cause)
  - airspeed(vlof) - not attained, pilot in command (cause)
- On ground/water encounter with terrain/water, takeoff - roll/run

## Analysis

PILOT TRIED STOP LANDING ON SANDBAR HE HAD DONE TOUCH AND GO LANDINGS ON. SAND WAS SOFT AND FLYING SPEED NOT ATTAINED BEFORE CURVE IN SANDBAR DURING TAKEOFF ATTEMPT. PILOT COULD NOT NEGOTIATE TURN AND CONTINUED INTO RIVER.

## Aircraft

- Registration: [N2584V](https://openairdocs.org/deregistered/N2584V-1996-07-22), registration cancelled 1996-07-22, S/N 18089 (OpenAirDocs)
- Reported make and model: CESSNA 170
- Registry model: [Cessna 170](https://openairdocs.org/model/cessna-170) (registry code 2072302) (OpenAirDocs)
- Category: Airplane
- Serial number: 18089
- Airframe hours: 3400
- Engines: CONTINENTAL C-145-2 145 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Vernon L. Roelfs
- Registered owner: Vernon L. Roelfs
- Departed: NEAR ANCHORAGE, AK
- Destination: ALEXANDER CREEK, AK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 34; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; flight hours: 143 total, 143 in this make and model, 97 as pilot in command, 56 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 150° at 7 knots
- Visibility: 20 statute miles
- Lowest ceiling: 4,000 ft broken
- Temperature: 104 °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 19820909048599A](https://openairdocs.org/incident/19820909048599A), Sep 9, 1982: Cessna 170, Alexander Creek, AK, Substantial damage. Tried to takeoff from soft sandbar with a dogleg. Failed to make turn. Ran into river and flipped over.

## Other investigations on N2584V (2)

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 ANC92LA014](https://openairdocs.org/ntsb/ANC92LA014), Nov 7, 1991: Cessna 170 (N2584V), Whiskey Gulch, AK, substantial damage. Probable cause: THE PILOT'S FAILURE TO MAINTAIN AN AIRSPEED ABOVE STALLING DURING MANEUVERING FLIGHT. A FACTOR RELATING TO THE ACCIDENT WAS OPERATING AT AN ALTITUDE INADEQUATE IN WHICH TO EFFECT RECOVERY.
- [NTSB OAK78FVG14](https://openairdocs.org/ntsb/OAK78FVG14), Jan 5, 1978: Cessna 170 (N2584V), Sacramento, CA, substantial damage

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.