# NTSB SEA83LA161: Cessna 182A, N6386B, Sheridan, OR, July 30, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 30, 1983, 16:30 local (23:30 UTC)
- Place: Sheridan, OR
- Coordinates: 45.099014, -123.419082 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.0990&lon=-123.4191&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 39741
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA83LA161
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/39741/pdf
- Page: https://openairdocs.org/ntsb/SEA83LA161

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, approach - vfr pattern - final approach
  - fuel system,carburetor - loose (contributing factor)
  - fluid,fuel - contamination (contributing factor)
  - fluid,fuel grade - improper (cause)
  - airport operations - inadvertent use, driver of vehicle (cause)
- Forced landing, landing - flare/touchdown
- Undershoot, landing - flare/touchdown
- On ground/water collision with object, landing - flare/touchdown
  - object - fence (contributing factor)

## Analysis

THE ACFT LOST POWER ON FINAL APPROACH TO LAND AND MADE CONTACT WITH A FENCE SHORT OF THE RWY AND NOSED OVER. DURING PREFLT THE PILOT HAD OMITTED CHECKING THE FUEL WITH A FUEL STRAINER BECAUSE HE DID NOT HAVE ONE. DURING INSPECTION THE CARBURETOR WAS FOUND TO HAVE A LOOSE SCREW WHICH COULD AFFECT THE AIR METERING SYSTEM. THE FUEL WAS FOUND TO CONTAIN A MIXTURE OF AVGAS & AUTOMOTIVE GASOLINE. ACCORDING TO THE FBO, THE GASOLINE TRUCK OPERATOR SOMETIMES USES HIS TRUCK TO HAUL AUTOMOTIVE FUEL & IS SUPPOSE TO USE THE FRONT TANK ONLY FOR AUTOMOTIVE FUEL. THE TRUCK HAS 3 COMPARTMENTS. THE REAR TANK IS USED FOR AVGAS, BUT THE TRUCK OPERATOR HAD PUT AUTOMOTIVE FUEL IN THE REAR TANK.

## Aircraft

- Registration: [N6386B](https://openairdocs.org/deregistered/N6386B-2015-05-11), registration cancelled 2015-05-11, S/N 34286, built 1957 (OpenAirDocs)
- Reported make and model: CESSNA 182A
- Registry model: [Cessna 182A](https://openairdocs.org/model/cessna-182a) (registry code 2072704) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 34286
- Airframe hours: 5483
- Engines: CONTINENTAL O-470-K 230 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Robert E. Johns
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, August 24, 1982
- Airport: 44S, Sheridan, runway 25, 3,000 × 40 ft, gravel

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 20; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 225 total, 2 in this make and model, 225 as pilot in command, 42 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 360° at 5 knots
- Visibility: 48 statute miles
- Lowest ceiling: none
- Temperature: 93 °F, dew point 59 °F
- Altimeter: 29.00 inHg
- Observed at: PDX, 45 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 19830730036659A](https://openairdocs.org/incident/19830730036659A), Jul 30, 1983: Cessna 182A, Sheridan, OR, Substantial damage. Engine quit on final approach for landing, aircraft hit fence short of runway. Fuel contamination found.

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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