# NTSB MKC68F0490: Cessna 182, N5931B, Circle Pines, MN, February 25, 1968

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: February 25, 1968
- Place: Circle Pines, MN · CIRCLE PINES, MN
- Location: 45.1437° N, 93.1475° W: Placed by OpenAirDocs: center of Circle Pines, MN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=45.1437&lon=-93.1475&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report May 3, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 111394
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC68F0490
- Page: https://openairdocs.org/ntsb/MKC68F0490

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0567  68/2/25    CIRCLE PINES,MINN   CESSNA 182          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 39, 136
        TIME - 1530                    N5931B              PX-  0  0  3  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 7 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - WALBERG
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: VALVE ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- NO.2 CYL LIFTER ASSY COLLAPSED CAUSING EXHAUST VALVE TO REMAIN CLOSED.
```

## Aircraft

- Registration: [N5931B](https://openairdocs.org/deregistered/N5931B-2014-10-02), registration cancelled 2014-10-02, S/N 33931 (OpenAirDocs)
- Reported make and model: CESSNA 182
- Registry model: [Cessna 182A](https://openairdocs.org/model/cessna-182a) (registry code 2072704) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Walberg

## Other investigations on N5931B (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 SEA08LA100](https://openairdocs.org/ntsb/SEA08LA100), Mar 30, 2008: Cessna 182A (N5931B), Buckeye, AZ, substantial damage. Probable cause: A loss of engine power for undetermined reasons. Contributing to the accident was the soft terrain.
- [NTSB UNK64X4018](https://openairdocs.org/ntsb/UNK64X4018), Sep 17, 1964: Cessna 182 (N5931B), Eureka, SD, 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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