# NTSB MKC86LA021: Mooney M20K, N231KB, Spring Hill, KS, November 4, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: November 3, 1985, 21:00 local (Nov 4, 1985, 03:00 UTC)
- Place: Spring Hill, KS
- Coordinates: 38.750434, -94.820762 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.7504&lon=-94.8208&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): 34111
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC86LA021
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34111/pdf
- Page: https://openairdocs.org/ntsb/MKC86LA021

## 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, descent - normal
  - engine assembly,connecting rod - failure,total (cause)
  - reason for occurrence undetermined
- Forced landing, descent
- On ground/water collision with object, landing - roll
  - object - fence (contributing factor)
  - object - utility pole (contributing factor)

## Analysis

THE PILOT OF THIS AIRCRAFT WAS RETURNING FROM A BUSINESS FLIGHT WHEN THE ENGINE FAILED. DURING THE FORCED LANDING, THE AIRCRAFT ROLLED THROUGH A FENCE AND THEN IMPACTED A POLE WITH ONE WING. THE PILOT STATED THAT ONE CONNECTING ROD CAME THROUGH THE SIDE OF THE ENGINE AND A ROD CAP WAS FOUND OUTSIDE OF THE ENGINE. THE PILOT LISTED TOTAL TIME 1800 ON THE ENGINE AND 1150 HOURS ON THE BROKEN PARTS. ENGINE TEARDOWN AND INSPECTION DID NOT REVEAL THE ORIGIN OF THE FAILURE.

## Aircraft

- Registration: [N231KB](https://openairdocs.org/deregistered/N231KB-2012-08-13), registration cancelled 2012-08-13, S/N 25-0006, built 1978 (OpenAirDocs)
- Reported make and model: Mooney M20K
- Registry model: [Mooney M20K](https://openairdocs.org/model/mooney-m20k) (registry code 5870220) (OpenAirDocs)
- Registry engine: [Continental TSIO-360 series](https://openairdocs.org/engine/continental-tsio-360-series) (registry code 17019, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 25-0006
- Airframe hours: 1150
- Engines: CONTINENTAL TS10-360-GB 210 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Operator: James J.Karnes
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, September 1, 1985, 40 hours before
- Departed: TUL, TULSA, OK
- Destination: GVW, GRANDVIEW, MO

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 36; airline transport, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: left; toxicology performed; flight hours: 7,770 total, 50 in this make and model, 7,589 as pilot in command, 253 in the last 90 days

## Weather

- Conditions: Visual (VMC), Night/dark
- Wind: 90° at 6 knots
- Visibility: 25 statute miles
- Lowest ceiling: none
- Temperature: 50 °F
- Altimeter: 30.00 inHg
- Observed at: IXD, 6 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 19851103074939A](https://openairdocs.org/incident/19851103074939A), Nov 3, 1985: Mooney M20K, Olathe_________, KS, Substantial damage. Hit a fence and a pole during a forced landing after engine quit. Engine too badly damaged to determine cause.

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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