# NTSB OAK78DVG03: Keoske EXP D1X, N3727, Lakeport, CA, October 19, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: October 19, 1977
- Place: Lakeport, CA · LAKEPORT, CA
- Location: 39.0383° N, 122.9226° W: Placed by OpenAirDocs: center of Lakeport, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.0383&lon=-122.9226&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 4, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 145256
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK78DVG03
- Page: https://openairdocs.org/ntsb/OAK78DVG03

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3064  77/10/19   LAKEPORT,CA         KEOSKE EXP D1X      CR-  0  0  1  MISCELLANEOUS             PRIVATE, AGE 37, 490
        TIME - 1445                    N3727               PX-  0  0  0  TEST                      TOTAL HOURS, 0 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - LAMPSON FIELD
        DEPARTURE POINT             INTENDED DESTINATION
          LAKEPORT,CA                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 TAKEOFF: RUN
           COLLIDED WITH: DITCHES                                   TAKEOFF: RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
        FACTOR(S)
           WEATHER - UNFAVORABLE WIND CONDITIONS
        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 CROSS WIND 248-292 DEGREES
        TEMPERATURE-F                                            WIND DIRECTION-DEGREES
           70                                                      210
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           15                                                      VFR
        TYPE OF FLIGHT PLAN
          NONE
```

## Aircraft

- Registration: [N3727](https://openairdocs.org/deregistered/N3727-1991-06-24), registration cancelled 1991-06-24, S/N 072 (OpenAirDocs)
- Reported make and model: KEOSKE EXP D1X
- Registry model: [Kecskes DER JAGER D 1X](https://openairdocs.org/model/kecskes-der-jager-d-1x) (registry code 0562817) (OpenAirDocs)
- Category: Airplane, amateur-built
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Lampson Field

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19771019031089A](https://openairdocs.org/incident/19771019031089A), Oct 19, 1977: Amtr 0562817, Lakeport, CA, Substantial damage

## Other investigations on N3727 (1)

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 LAX83FA453](https://openairdocs.org/ntsb/LAX83FA453), Sep 21, 1983: Kecskes DER Jager D-1X (N3727), Clearlake Oaks, CA, destroyed, 1 fatal

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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