# NTSB SEA91LA117: Cessna T-210N, N5375A, Klamath Falls, OR, May 27, 1991

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: May 27, 1991, 13:43 local (20:43 UTC)
- Place: Klamath Falls, OR
- Coordinates: 42.15966, -121.679664 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.1597&lon=-121.6797&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor, 3 uninjured
- Status: Completed, report February 8, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 41440
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA91LA117
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/41440/pdf
- Page: https://openairdocs.org/ntsb/SEA91LA117

## Probable cause

THE LOSS OF ENGINE POWER DUE TO FAILURE OF THE NUMBER 5 CYLINDER ROD BEARING WHICH RESULTED FROM LACK OF LUBRICATION OF THE MAIN BEARING.

## 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 - normal
  - engine assembly,bearing - overtemperature (cause)
  - fluid,oil - blocked(partial) (cause)
  - engine assembly,connecting rod - failure,total (cause)
- Forced landing, descent - emergency
- On ground/water collision with object, landing - roll
- Nose over, landing - roll

## Analysis

THE ACFT ENGINE QUIT IN CRUISE FLT AND THE PILOT MADE A FORCED LANDING IN A FIELD.  THE ACFT IMPACTED IRRIGATION EQUIP DURING LANDING ROLL AND NOSED OVER.  EXAM OF THE ENGINE REVEALED EVIDENCE OF A SPUN MAIN ROD BEARING IN THE NO 5 CYLINDER, OVERTEMP AND FAILURE OF THE BEARING.

## Aircraft

- Registration: [N5375A](https://openairdocs.org/deregistered/N5375A-2013-04-09), registration cancelled 2013-04-09, S/N 21063400, built 1979 (OpenAirDocs)
- Reported make and model: CESSNA T-210N
- Registry model: [Cessna T210N](https://openairdocs.org/model/cessna-t210n) (registry code 2073456) (OpenAirDocs)
- Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 21063400
- Airframe hours: 1385
- Engines: CONTINENTAL TSIO-520-R 310 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Stephan G. Lang
- Registered owner: Stephan G. Lang
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, June 18, 1990, 55 hours before
- Departed: S21, SUNRIVER, OR
- Destination: SNA, SANTA ANA, CA

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 41; private; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; flight hours: 1,067 total, 577 in this make and model, 1,007 as pilot in command, 22 in the last 90 days, 16 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 330° at 7 knots
- Visibility: 25 statute miles
- Lowest ceiling: none
- Temperature: 63 °F, dew point 30 °F
- Observed at: LMT, 1 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 19910527017369A](https://openairdocs.org/incident/19910527017369A), May 27, 1991: Cessna T210N, Klamath Falls, OR, Substantial damage. Engine lost power. Radar vectored but unable make airport. Nosed over.

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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