# NTSB CHI83LA140: Beech 35-C33, N10HR, Princton, MN, March 16, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 15, 1983, 18:45 local (Mar 16, 1983, 00:45 UTC)
- Place: Princton, MN
- Coordinates: 45.569519, -93.590911 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.5695&lon=-93.5909&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12110
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI83LA140
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12110/pdf
- Page: https://openairdocs.org/ntsb/CHI83LA140

## Sequence of events

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

- Loss of engine power(partial) - mech failure/malf, cruise - normal
  - ignition system,magneto - open
  - maintenance,major repair - not performed, other maintenance personnel (cause)
  - ignition system,spark plug - burned
  - maintenance,replacement - not performed, other maintenance personnel (cause)
- Forced landing, descent - emergency
- On ground/water encounter with terrain/water, landing - roll
  - airport facilities,runway edge lights - unavailable (contributing factor)
  - weather condition - snow (contributing factor)
  - light condition - dusk (contributing factor)
  - terrain condition - dirt bank/rising embankment

## Analysis

THE PILOT SAID THAT AT 6000 FEET MSL THE ENGINE BEGAN TO MISS AND GOT WORSE. HE TRIED TO CORRECT THE SITUATION BUT COULD NOT. HE REQUESTED AND WAS GIVEN VECTORS TO THE PRINCETON ARPT. THE ARPT WAS CLOSED AT THE TIME DUE TO SNOW COVERED RUTS ON THE RNWY AND THE RNWY LIGHTS WERE OUT. HE WAS UNABLE TO LOCATE THE RNWY AND A LANDING WAS ACCOMPLISHED IN A OPEN AREA ON THE ARPT. THE ACFT RAN INTO THE EMBANKMENT DURING LANDING ROLL. POST-ACCIDENT EXAM REVEALED THAT THE RIGHT MAGNETO WOULD NOT BENCH CHECK SATISFACTORILY. THE SPARK PLUG CENTER ELECTRODES WERE BURNED DOWN ALMOST TO THE PORCLAIN.

## Aircraft

- Registration: [N10HR](https://openairdocs.org/deregistered/N10HR-2018-09-13), registration cancelled 2018-09-13, S/N CD-1110, built 1967 (OpenAirDocs)
- Reported make and model: BEECH 35-C33
- Registry model: [Beech 35-C33](https://openairdocs.org/model/beech-35-c33) (registry code 1151408) (OpenAirDocs)
- Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: CD1110
- Airframe hours: 2240
- Engines: CONTINENTAL IO-470-K 225 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Registered owner: Episcopal Community Serv., Inc
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, January 28, 1983, 100 hours before
- Departed: STP, ST. PAUL, MN
- Destination: BJI, BEMIDJI, MN
- Flight plan: IFR
- Airport: 14D, Princeton Muni

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 29; flight instructor, commercial; airplane ratings: single-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 3,403 total, 1,402 in this make and model, 3,229 as pilot in command, 175 in the last 90 days

## Weather

- Conditions: Instrument (IMC), Dusk
- Lowest ceiling: 1,000 ft overcast

## 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 19830315007989A](https://openairdocs.org/incident/19830315007989A), Mar 15, 1983: Beech 35C33, Princeton, MN, Substantial damage. Damage occurred during emergency landing on airport after magneto problem caused engine malfunction.

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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