# NTSB MKC75AK018: Mooney M20C, N3911N, Stewartville, MN, August 6, 1974

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: August 6, 1974
- Place: Stewartville, MN · STEWARTVILLE, MN
- Location: 43.8610° N, 92.4900° W: Placed by OpenAirDocs: center of Stewartville, MN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.8610&lon=-92.4900&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 2 uninjured
- Status: Completed, report October 10, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 136854
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC75AK018
- Page: https://openairdocs.org/ntsb/MKC75AK018

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2769   74/8/6    STEWARTVILLE,MINN   MOONEY M20C         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 27, 360
        TIME - 1030                    N3911N              PX-  0  0  2  AIR TAXI-PASSG            TOTAL HOURS, 20 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          ROCHESTER,MINN              LE MARS,IOWA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: CLIMB TO CRUISE
           COLLIDED WITH: DITCHES                                   LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: MASTER AND CONNECTING RODS
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           TERRAIN - HIGH VEGETATION
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
        REMARKS- ENG FAILURE,STRUCK DITCH ON EMGCY LDG IN PASTURE.NR 2 CON ROD FAILED.STRUCTURAL BKDWN RESULTED.
```

## Aircraft

- Registration: [N3911N](https://openairdocs.org/deregistered/N3911N-2006-10-12), registration cancelled 2006-10-12, S/N 680004, built 1968 (OpenAirDocs)
- Reported make and model: MOONEY M20C
- Registry model: [Mooney M20C](https://openairdocs.org/model/mooney-m20c) (registry code 5870208) (OpenAirDocs)
- Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N3911N (2)

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 CHI04CA154](https://openairdocs.org/ntsb/CHI04CA154), Jun 10, 2004: Mooney M20C (N3911N), Golden, MO, substantial damage. Probable cause: The pilot's failure to maintain directional control and his failure to maintain clearance from the trees. The trees were a contributing factor.
- [NTSB MKC69D0279](https://openairdocs.org/ntsb/MKC69D0279), Nov 9, 1968: Mooney M20C (N3911N), Westside, IA, 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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