# NTSB DEN86LA234: Cessna T210M, N6952M, Dillon, MT, August 22, 1986

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: August 22, 1986, 12:00 local (18:00 UTC)
- Place: Dillon, MT
- Coordinates: 45.050731, -112.819419 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.0507&lon=-112.8194&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 3 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 17038
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN86LA234
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/17038/pdf
- Page: https://openairdocs.org/ntsb/DEN86LA234

## Sequence of events

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

- Overrun, landing - roll
  - preflight planning/preparation - inadequate, pilot in command (contributing factor)
  - airport facilities,runway/landing area condition - loose gravel/sandy (contributing factor)
  - in-flight planning/decision - improper, pilot in command (contributing factor)
  - weather condition - high density altitude (contributing factor)
  - wrong runway - selected, pilot in command (contributing factor)
  - weather condition - tailwind (contributing factor)
  - radio communications - not understood, pilot in command (contributing factor)
  - light condition - daylight (contributing factor)
- On ground/water collision with object, landing - roll
  - object - runway light (contributing factor)
  - aborted takeoff - delayed, pilot in command (cause)
  - object - fence (contributing factor)
  - go-around - attempted, pilot in command (contributing factor)
  - directional control - not maintained, pilot in command (cause)
- Nose over, other

## Analysis

PLT SAID HE CALLED UNICOM FOR ARPT ADVISORY AND HEARD OPERATOR SAY SOMETHING ABOUT SIX. HE THOUGHT SHE SAID RWY 6 WAS THE PREFERRED RWY (THERE IS NO RWY 6 AT DILLON ARPT). OPERATOR ACTUALLY SAID RWY 16 WAS THE PREFERRED RWY. PLT LANDED PAST MIDWAY POINT OF RWY 3 (3500 FT, TURF) AND ATTEMPTED GO-AROUND. ACFT HIT RWY MARKER, WENT THROUGH FENCE AND OVERTURNED. ARPT DENSITY ALTITUDE WAS COMPUTED TO BE 6135 FT. ACFT FLIGHT MANUAL SAYS GROUND ROLL OF 935 FT AND 1550 FT IS REQUIRED FOR LANDING AND TAKEOFF. PLT WAS ALSO FLYING ON EXPIRED MEDICAL CERTIFICATE.

## Aircraft

- Registration: [N6952M](https://openairdocs.org/deregistered/N6952M-2015-09-01), registration cancelled 2015-09-01, S/N 21062003, built 1977 (OpenAirDocs)
- Reported make and model: CESSNA T210M
- Registry model: [Cessna T210M](https://openairdocs.org/model/cessna-t210m) (registry code 2073451) (OpenAirDocs)
- Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 21062003
- Airframe hours: 1870
- Engines: CONTINENTAL TSIO-520-R 310 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Eugene E. Bannister
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, July 12, 1986, 18 hours before
- Departed: PAE, EVERETT, WA
- Airport: DLN, Dillon, runway 3, 3,500 × 90 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 58; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, expired; seat: left; flight hours: 1,600 as pilot in command, 38 in the last 90 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 170° at 3 knots
- Visibility: 45 statute miles
- Lowest ceiling: none
- Temperature: 63 °F, dew point 48 °F
- Altimeter: 30.00 inHg
- Observed at: DLN

## 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 19860822042009A](https://openairdocs.org/incident/19860822042009A), Aug 22, 1986: Cessna T210M, Dillon, MT, Substantial damage. Overshot landing, attempted go around but unable to climb. Collided with fence and ditch. Pilot medical expired.

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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