# NTSB OAK74DVG44: Piper PA-28, N4201J, Vacaville, CA, April 20, 1974

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 20, 1974
- Place: Vacaville, CA · VACAVILLE, CA
- Location: 38.3586° N, 121.9686° W: Placed by OpenAirDocs: center of Vacaville, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.3586&lon=-121.9686&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report May 29, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 124413
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK74DVG44
- Page: https://openairdocs.org/ntsb/OAK74DVG44

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1095  74/4/20    VACAVILLE, CALIF    PIPER PA-28         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 29, 82 TOTAL
        TIME - 1115                    N4201J              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  HOURS, 31 IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - NUT TREE
        DEPARTURE POINT             INTENDED DESTINATION
          SALINAS, CALIF              VACAVILLE, CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: LEVEL OFF/TOUCHDOWN
           COLLIDED WITH: OBJECT                                    LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
           WEATHER - SUDDEN WINDSHIFT
        FACTOR(S)
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT FACILITIES: APPROACH LIGHTING
        WEATHER BRIEFING - UNKNOWN/NOT REPORTED
        WEATHER FORECAST - WEATHER SLIGHTLY WORSE THAN FORECAST
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  RELATIVE BEARING OF WIND
          NONE                                                     LEFT QUARTERING HEAD WIND 293-337 DEGREES
        TEMPERATURE-F                                            WIND DIRECTION-DEGREES
           70                                                      320
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           15                                                      VFR
        TYPE OF FLIGHT PLAN
          VFR
        REMARKS- COLLIDED WITH VASI STRUCTURE.PEAK GUSTS N/R.
```

## Aircraft

- Registration: [N4201J](https://openairdocs.org/aircraft/N4201J), registered now, S/N 28-22545 (OpenAirDocs)
- Reported make and model: PIPER PA-28
- Registry model: [Piper PA-28-140](https://openairdocs.org/model/piper-pa-28-140) (registry code 7102802) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Nut Tree

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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