# NTSB DEN84FA012: Cessna T210G, N6906R, Bountiful, UT, October 23, 1983

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Field investigation · Final report
- Date: October 23, 1983, 11:00 local (17:00 UTC)
- Place: Bountiful, UT
- Coordinates: 40.88018, -111.820602 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.8802&lon=-111.8206&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 2 serious, 3 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 16177
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN84FA012
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/16177/pdf
- Page: https://openairdocs.org/ntsb/DEN84FA012

## Sequence of events

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

- Loss of engine power, cruise - normal
  - reason for occurrence undetermined (cause)
- Forced landing, landing
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - high vegetation (contributing factor)
  - terrain condition - hidden obstruction(s) (contributing factor)
  - terrain condition - dirt bank/rising embankment (contributing factor)
- Nose over, landing - roll

## Analysis

DURING FLT AT 11,000 FT, THE PLT NOTED THAT THE FUEL FLOW GAGE WAS 'WIGGLING' & THE ENG 'DIDN'T SOUND REAL HEALTHY.' HE INCREASED THE MIXTURE SLIGHTLY & TURNED THE AUX FUEL PUMP TO 'LOW BOOST.' THE FUEL FLOW THEN STABILIZED 'PRETTY GOOD.' THE PLT SAID THAT A LITTLE LATER, THE FUEL FLOW GAGE'WAS STILL FLUCTUATING AROUND' & THE ENG DIDN'T SOUND RIGHT, SO HE SWITCHED THE AUX FUEL PUMP TO 'HI BOOST' & LEANED THE MIXTURE SLIGHTLY. THE ENG THEN RAN NORMALLY & HE CONTINUED TO THE DESTINATION & LEFT THE AUX FUEL PUMP AT 'HI BOOST.' ON FINAL APCH TO LAND WITH THE AUX PUMP STILL ON, THE ENG LOST POWER. UNABLE TO CLEAR OBSTRUCTIONS, THE PLT ELECTED TO LAND IN A FIELD SHORT OF THE RWY. DURING ROLL-OUT IN TALL GRASS, THE ACFT STRUCK A MOUND OF DIRT & NOSED OVER. NO PREIMPACT FAILURE WAS FOUND & FUEL WAS STILL REMAINING. ACCORDING TO THE OWNER'S MANUAL, FUEL VAPORIZATION CAN OCCUR; IF FUEL FLOW FLUCTUATES ABOVE 1 GAL/HR, POSITION AUX PUMP TO 'HI' & ADJUST THE MISTURE; WHEN FUEL FLOW IS STEADY FOR SVRL MIN, AUX PUMP CAN BE TURNED OFF & MIXTURE RESET.

## Aircraft

- Registration: [N6906R](https://openairdocs.org/deregistered/N6906R-2013-05-02), registration cancelled 2013-05-02, S/N T210-0306, built 1967 (OpenAirDocs)
- Reported make and model: CESSNA T210G
- Registry model: [Cessna T210G](https://openairdocs.org/model/cessna-t210g) (registry code 2073432) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: T210-0306
- Airframe hours: 2840
- Engines: CONTINENTAL TSIO-520-C1 285 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Michael Perkins& Gayle Perkins
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, July 1, 1983, 35 hours before
- Departed: SGU, ST. GEORGE, UT
- Airport: BTF, Salt Lake Skypark, runway 34, 4,700 × 70 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 43; private; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 728 total, 54 in this make and model, 25 in the last 90 days, 6 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 40 statute miles
- Lowest ceiling: none
- Temperature: 64 °F, dew point 37 °F
- Altimeter: 30.00 inHg
- Observed at: SLC, 7 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 19831023055099A](https://openairdocs.org/incident/19831023055099A), Oct 23, 1983: Cessna T210G, Bountiful, UT, Substantial damage. Lost power on landing approach. Landed in a field of tall grass and nosed over. Fuel vapor problem in fuel system

## Other investigations on N6906R (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 MKC75DER47](https://openairdocs.org/ntsb/MKC75DER47), Feb 1, 1975: Cessna T210G (N6906R), Eden Prairie, MN, substantial damage

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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