# NTSB DEN89LA008: Cessna T210N, N7335N, Price, UT, October 6, 1988

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: October 6, 1988, 10:15 local (16:15 UTC)
- Place: Price, UT
- Coordinates: 39.569179, -110.799736 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.5692&lon=-110.7997&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report December 3, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 17625
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN89LA008
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/17625/pdf
- Page: https://openairdocs.org/ntsb/DEN89LA008

## Analysis

THE PILOT WAS PERFORMING A BUSINESS FLIGHT OVER MOUNTAINOUS TERRAIN. ABOUT 1 HR INTO THE FLIGHT, HE NOTICED SMOKE OR OIL VAPOR IN THE COCKPIT. HE SAW OIL ON THE LOWER COWLING AND WING AND COMMUNICATED HIS POSITION AND PROBLEM TO THE SALT LAKE CITY ARTCC. THE ENGINE LOST OIL PRESSURE AND BEGAN TO RUN ROUGH WITH SEVERE VIBRATIONS. THE PLT ELECTED TO SHUT THE ENGINE DOWN AND LAND IN A CLEARING. THE ACFT LANDED WHEELS UP IN ROUGH TERRAIN. THE FUSELAGE, WINGS, AND FIREWALL WERE DAMAGED. A POST-ACCIDENT INSPECTION BY AN FAA AIRWORTHINESS INSPECTOR REVEALED THAT AN OIL LINE SERVICING THE TURBO-CHARGER WASTE GATE HAD BROKEN AND ALLOWED THE ENGINE OIL TO DUMP. WITH THE OIL SUPPLY DEPLETED, THE NUMBER 4 CONNECTING ROD BEARING SEIZED AND THE ROD BROKE, KNOCKING A HOLE IN THE CASE. THE MECHANIC REPORTED THAT THE PILOT WAS ADVISED TO HAVE THE OIL LINE REPLACED 1.5 HOURS BEFORE THIS FLIGHT.

## 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, cruise
  - lubricating system,oil hose - failure,total (cause)
  - fluid,oil - exhaustion (cause)
  - operation with known deficiencies in equipment - intentional, pilot in command (contributing factor)
  - engine assembly,bearing - seized
  - engine assembly,connecting rod - fractured
  - engine assembly,crankcase - penetrated
- Forced landing, descent - emergency
- Hard landing, landing - flare/touchdown
  - terrain condition - none suitable (contributing factor)

## Aircraft

- Registration: [N7335N](https://openairdocs.org/aircraft/N7335N), registered now, S/N 21063221 (OpenAirDocs)
- Reported make and model: CESSNA T210N
- Registry model: [Cessna T210N](https://openairdocs.org/model/cessna-t210n) (registry code 2073456) (OpenAirDocs)
- Category: Airplane
- Serial number: 21063221
- Airframe hours: 1640
- Engines: CONTINENTAL TSIO-520-R 310 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Operator: Stephen, Norman B.
- Registered owner: Frac-Tanks, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, March 22, 1988, 47 hours before
- Departed: EVW, EVANSTON, WY
- Destination: CNY, MOAB, UT

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 44; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 930 total, 345 in this make and model, 28 in the last 90 days, 5 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 60 statute miles
- Lowest ceiling: none
- Temperature: 55 °F

## 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 19881006047949A](https://openairdocs.org/incident/19881006047949A), Oct 6, 1988: Cessna T210N, Price, UT, Substantial damage. Oil on cowling and wing. Lost oil pressure and engine seized. Crash landed gear up. Oil line to turbocharger broke.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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