# NTSB ATL92LA072: Cessna U206G, N9679G, Lafayette, TN, March 29, 1992

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 29, 1992, 13:05 local (18:05 UTC)
- Place: Lafayette, TN
- Coordinates: 36.520893, -86.029312 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=36.5209&lon=-86.0293&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report June 11, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 8581
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL92LA072
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/8581/pdf
- Page: https://openairdocs.org/ntsb/ATL92LA072

## Probable cause

THE PILOT'S INADEQUATE PREFLIGHT INSPECTIONS WHICH RESULTED IN OIL STARVATION AND EVENTUAL FAILURE OF THE ENGINE. A FACTOR WAS THE ROUGH TERRAIN WHERE THE AIRPLANE WAS FORCE LANDED.

## 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
  - fluid,oil - starvation (cause)
  - aircraft preflight - inadequate, pilot in command (cause)
- Forced landing, descent - emergency
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - rough/uneven (contributing factor)

## Analysis

THE PILOT HAD RENTED THE AIRPLANE FOR SEVERAL DAYS. DURING THE ACCIDENT FLIGHT, WHILE DESCENDING TO LAND, THE ENGINE OVERSPED. IT WAS CONTROLLED BY REDUCING THE THROTTLE. SHORTLY AFTERWARDS SMOKE WAS NOTED OUTSIDE OF THE AIRPLANE AND IN THE CABIN. THE ENGINE THEN QUIT. A FORCED LANDING WAS MADE TO ROUGH TERRAIN WHICH RESULTED IN SUBSTANTIAL DAMAGE. ENGINE DISASSEMBLY REVEALED DAMAGE CONSISTENT WITH OIL STARVATION. 1.5 QTS OF THE NORMAL 13 QTS OF OIL WERE DRAINED FROM THE ENGINE. NO OIL WAS FOUND ON THE ENGINE NOR THE FUSELAGE, EXTERNALLY. DURING THE NINE DAYS AND 22 HOURS THE AIRPLANE WAS RENTED BY THE PILOT, THERE WAS NO EVIDENCE THAT ANY OIL WAS ADDED TO THE ENGINE.

## Aircraft

- Registration: [N9679G](https://openairdocs.org/deregistered/N9679G-2013-05-23), registration cancelled 2013-05-23, S/N U20603823, built 1977 (OpenAirDocs)
- Reported make and model: CESSNA U206G
- Registry model: [Cessna U206G](https://openairdocs.org/model/cessna-u206g) (registry code 2073356) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: U20603823
- Airframe hours: 2906
- Engines: CONTINENTAL IO-520F 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Buckner Aviation, Inc.
- Registered owner: Buckner Aviation, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, October 22, 1991, 53 hours before
- Departed: MCN, MACON, GA
- Destination: BWG, BOWLING GREEN, KY
- Flight plan: IFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 41; private; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 852 total, 22 in this make and model, 811 as pilot in command, 29 in the last 90 days, 22 in the last 30 days, 8 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 10 knots
- Visibility: 15 statute miles
- Lowest ceiling: 6,000 ft broken
- Altimeter: 30.00 inHg
- Observed at: BNA, 35 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 19920329007669A](https://openairdocs.org/incident/19920329007669A), Mar 29, 1992: Cessna U206G, Lafayette, TN, Substantial damage. Engine quit en route. Crash landed. Only two quarts oil in crankcase. Holds 13 quarts. Flew several days. No oil.

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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