# NTSB SEA83LA136: Snow S2C, N1665S, Hepner, OR, June 3, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 3, 1983, 08:42 local (15:42 UTC)
- Place: Hepner, OR
- Coordinates: 45.310226, -119.58023 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.3102&lon=-119.5802&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 39719
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA83LA136
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/39719/pdf
- Page: https://openairdocs.org/ntsb/SEA83LA136

## Analysis

THE ACFT SLID SIDEWAYS ON A SLOPING FIELD DURING A FORCED LANDING AND DAMAGED A WING. THE PILOT SAID HE HAD SPRAYED TWO FIELDS AND WAS ENROUTE TO SPRAY ANOTHER WHEN A COMPLETE LOSS OF POWER OCCURRED. THE PILOT STATED THAT HE FOUND NO USABLEFUEL IN EITHER FUEL TANK.

## Sequence of events

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

- Loss of engine power(total) - nonmechanical, cruise - normal
  - fluid,fuel - exhaustion (contributing factor)
  - preflight planning/preparation - inadequate, pilot in command (cause)
  - fuel supply - inadequate, pilot in command (cause)
  - fuel consumption calculations - misjudged, pilot in command (cause)
- Forced landing, landing - flare/touchdown
- Dragged wing,rotor,pod,float or tail/skid, landing - flare/touchdown

## Aircraft

- Registration: [N1665S](https://openairdocs.org/deregistered/N1665S-2013-04-30), registration cancelled 2013-04-30, S/N 1238C, built 1964 (OpenAirDocs)
- Reported make and model: SNOW S2C
- Registry model: [Snow S2C](https://openairdocs.org/model/snow-s2c) (registry code 8380206) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 1238C
- Engines: P&W R-985 450 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: Paul Hansen
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, December 1, 1983, 0 hours before
- Departed: HEPNER, OR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 30; airline transport; airplane ratings: single-engine sea, single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; flight hours: 5,218 total, 84 in this make and model, 4,989 as pilot in command, 84 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 310° at 18 knots
- Visibility: 30 statute miles
- Temperature: 59 °F, dew point 46 °F
- Altimeter: 30.00 inHg
- Observed at: DLS, 75 nm away

## 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 19830603027239A](https://openairdocs.org/incident/19830603027239A), Jun 3, 1983: Ayres S2C, Heppner, OR, Substantial damage. Ran out of fuel during an ag operation. Landed downhill. Aircraft slid sideways damaging a wing.

## Other investigations on N1665S (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 SEA99LA079](https://openairdocs.org/ntsb/SEA99LA079), Jun 1, 1999: Snow S2C (N1665S), Paul, ID, substantial damage. Probable cause: The pilot's inaccurate weight and balance calculations, and his delay in jettisoning the load which resulted in his failure to clear rising terrain. Contributing to the accident was the high density…

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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