# NTSB DEN83LA142: Cessna 182Q, N7506S, Hysham, MT, June 16, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 16, 1983, 10:30 local (16:30 UTC)
- Place: Hysham, MT
- Coordinates: 45.999286, -107.119842 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.9993&lon=-107.1198&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 16096
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN83LA142
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/16096/pdf
- Page: https://openairdocs.org/ntsb/DEN83LA142

## 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, cruise
  - engine assembly,piston - burned (cause)
  - engine assembly,piston - leak (cause)
  - fluid,oil - exhaustion
- Forced landing, landing
- Nose gear collapsed, landing - roll
  - terrain condition - soft (contributing factor)
  - landing gear,nose gear - overload

## Analysis

THE PLT REPORTED THAT HE ABORTED HIS X-COUNTRY FLT DUE TO IMC AHEAD. WHILE RETURNING TO BILLINGS, MT, OIL & SMOKE STARTED COMING FROM THE ENG COMPARTMENT & OIL COVERED HIS WINDSHIELD. THE ENG BEGAN LOSING POWER, SO HE SHUT IT DOWN. WHILE MAKING AN EMERGENCY LANDING ON SOFT TERRAIN, THE NOSE GEAR COLLAPSED. AN EXAM REVELAED THAT THE #5 CYLINDER HAD NO COMPRESSION. AN INSPECTION OF THE CYLINDER THRU THE SPARK PLUG HOLE WITH A FLASHLIGHT REVEALED A HOLE HAD BURNED DOWN THE SIDE OF THE PISTON.

## Aircraft

- Registration: [N7506S](https://openairdocs.org/deregistered/N7506S-2018-02-23), registration cancelled 2018-02-23, S/N 18265199, built 1976 (OpenAirDocs)
- Reported make and model: CESSNA 182Q
- Registry model: [Cessna 182Q](https://openairdocs.org/model/cessna-182q) (registry code 2072732) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 18265199
- Airframe hours: 766
- Engines: CONTINENTAL O-470-U 230 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Gayvert & Gilstrap
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, August 27, 1982
- Departed: BIL, BILLINGS, MT
- Destination: GFK, GRAND FORKS, ND
- Flight plan: VFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 57; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 327 total, 250 in this make and model, 250 as pilot in command, 31 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 3 statute miles
- Lowest ceiling: 4,800 ft overcast
- Temperature: 61 °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 19830616025979A](https://openairdocs.org/incident/19830616025979A), Jun 16, 1983: Cessna 182Q, Hysham, MT, Substantial damage. Crash occurred during emergency landing after engine malfunction. Hole was burned in number 5 piston.

## Other investigations on N7506S (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 ERA15LA300](https://openairdocs.org/ntsb/ERA15LA300), Aug 8, 2015: Cessna 182 (N7506S), Hot Springs, VA, substantial damage. Probable cause: A partial loss of engine power during initial climb due to the failure of a magneto. Contributing to the accident was the pilot's decision to operate the airplane without a current annual inspection.

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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