# NTSB MKC85LA163: Cessna 182, N5699B, Forest City, IA, July 20, 1985

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: July 20, 1985, 14:02 local (19:02 UTC)
- Place: Forest City, IA
- Coordinates: 43.250251, -93.630516 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=43.2503&lon=-93.6305&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 3 minor, 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 33993
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC85LA163
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/33993/pdf
- Page: https://openairdocs.org/ntsb/MKC85LA163

## 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, takeoff - initial climb
  - fluid,oil - contamination (cause)
  - lubricating system - blocked(total) (cause)
  - fluid,oil - starvation (cause)
- Forced landing, descent - emergency
- In flight collision with terrain/water, landing - flare/touchdown
  - terrain condition - crop (contributing factor)
- Nose over, landing

## Analysis

SHORTLY AFTER THE ACFT TOOK OFF WITH 4 SKYDIVERS ON BOARD, ITS ENG SEIZED AT AN ALT OF ABOUT 300 TO 400 FT. THE PLT SELECTED THE BEST AVAILABLE AREA TO LAND WHICH WAS A FIELD OF TALL CORN ON ROLLING TERRAIN. DURING THE EMERG LANDING, THE ACFT NOSED OVER. LATER, THE ENG WAS DISASSEMBLED & APRX 1 QT OF FINELY GROUND FERREOUS MATERIAL WAS FOUND DEPOSITED IN THE LOWER OIL PAN. THE MAIN BEARINGS WERE FOUND SCORED & DISCOLORED, & THE MAIN BEARING SHELLS SHOWED EVIDENCE OF OVERHEATING. THE CONNECTING RODS WERE ALSO DISCOLORED FROM HEAT. THE SCREEN CHAMBER OF THE OIL PUMP WAS FOUND FULL OF FERROUS METAL WHICH SHUT OFF THE OIL SUPPLY TO THE OIL PUMP GEARS. THE FAA MAINT INSPECTOR WHO EXAMINED THE ENG STATED THAT THE FERROUS MATERIAL FOUND IN THE ENG & BOTTOM PAN WAS NOT FROM THE ENG. THE SOURCE OF THE MATERIAL WAS NOT DETERMINED.

## Aircraft

- Registration: N5699B (not matched to a registry record)
- Reported make and model: CESSNA 182
- Category: Airplane
- Serial number: 18233699
- Engines: CONTINENTAL O-470-L 230 horsepower reciprocating
- Damage: Substantial damage
- Flight: Other work use, Part 91
- Registered owner: Forest City Skydivers Inc.
- Airworthiness certificate: Standard, Normal
- Airport: D34, Forest City Muni, runway 15, 5,800 × 100 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 30; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 352 total, 230 in this make and model, 299 as pilot in command, 104 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 77 °F, dew point 57 °F
- Altimeter: 30.00 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 19850720032899A](https://openairdocs.org/incident/19850720032899A), Jul 20, 1985: Cessna 182, Forest City, IA, Substantial damage. Nosed over in field after forced landing due to engine failure. Fine metal put in oil by an unknown person.

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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