# NTSB OAK71DVA41: Maule M4-220, N2047U, Visalia, CA, November 22, 1970

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: November 22, 1970
- Place: Visalia, CA · VISALIA, CA
- Location: 36.3302° N, 119.2921° W: Placed by OpenAirDocs: center of Visalia, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.3302&lon=-119.2921&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report August 25, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 159201
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK71DVA41
- Page: https://openairdocs.org/ntsb/OAK71DVA41

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4238  70/11/22   VISALIA,CALIF       MAULE M4-220        CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 27, 219
        TIME - 1930                    N2047U              PX-  0  0  3  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 127 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - GREEN ACRES
        DEPARTURE POINT             INTENDED DESTINATION
          LANCASTER,CALIF             VISALIA,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
           GEAR COLLAPSED                                           LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: CRANKSHAFT
           MISCELLANEOUS ACTS,CONDITIONS - LEAK/LEAKAGE
           MISCELLANEOUS ACTS,CONDITIONS - WINDSHIELD,DIRTY,FOGGY,ETC.-RESTRICTED VISION
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED MECHANICAL DISCREPANCY
        REMARKS- CRANKSHAFT SEAL LEAKED OIL,COVERED WINDSHIELD. PLTS VISION RESTRICTED ON LDG.
```

## Aircraft

- Registration: [N2047U](https://openairdocs.org/deregistered/N2047U-2012-10-16), registration cancelled 2012-10-16, S/N 2041C, built 1970 (OpenAirDocs)
- Reported make and model: MAULE M4-220
- Registry model: [Maule M-4-220C](https://openairdocs.org/model/maule-m-4-220c) (registry code 5460114) (OpenAirDocs)
- Registry engine: [Franklin 6V 350 series](https://openairdocs.org/engine/franklin-6v-350-series) (registry code 27043, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Green Acres

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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