# NTSB MKC69F0199: Cooney R1, N311X, Lamoni, IA, September 24, 1968

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 24, 1968
- Place: Lamoni, IA · LAMONI, IA
- Location: 40.6196° N, 93.9305° W: Placed by OpenAirDocs: center of Lamoni, IA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.6196&lon=-93.9305&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 8, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 108328
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC69F0199
- Page: https://openairdocs.org/ntsb/MKC69F0199

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3233  68/9/24    LAMONI,IOWA         COONEY R1           CR-  0  0  1  NONCOMMERCIAL             AIRLINE TRANSPORT, AGE
        TIME - 1630                    N311X               PX-  0  0  0  PLEASURE/PERSONAL TRANSP  46, 20700 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            197 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: FENCE,FENCEPOSTS                          LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: CRANKSHAFT
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- 41 HRS SINCE OVERHAUL.REGROUND CRANKSHAFT INSTALLED WHICH WAS NOT MAGNAFLUXED.
```

## Aircraft

- Registration: [N311X](https://openairdocs.org/deregistered/N311X-1971-03-24), registration cancelled 1971-03-24, S/N 1 (OpenAirDocs)
- Reported make and model: COONEY R1
- Registry model: [Cooney Thomas A R-1](https://openairdocs.org/model/cooney-thomas-a-r-1) (registry code 05638U6) (OpenAirDocs)
- Category: Airplane, amateur-built
- Engines: reciprocating
- Damage: 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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