# NTSB OAK78DVG66: Boeing A75, N707R, Lower Lake, CA, July 24, 1978

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 24, 1978
- Place: Lower Lake, CA · LOWER LAKE, CA
- Location: 38.9130° N, 122.6070° W: Placed by OpenAirDocs: center of Lower Lake, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.9130&lon=-122.6070&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report August 7, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 141301
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK78DVG66
- Page: https://openairdocs.org/ntsb/OAK78DVG66

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1470  78/7/24    LOWER LAKE,CA       BOEING A75          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE UNK/NR, 290
        TIME - 1540                    N707R               PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 45 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - PIERCE FIELD
        DEPARTURE POINT             INTENDED DESTINATION
          VACAVILLE,CA                LOWER LAKE,CA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: TREES                                     LANDING: GO-AROUND
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - DELAYED IN INITIATING GO-AROUND
        FACTOR(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
        REMARKS- CARB HEAT LEFT ON DURING INITIAL CLIMB.
```

## Aircraft

- Registration: [N707R](https://openairdocs.org/aircraft/N707R), registered now, S/N 75-544, built 1940 (OpenAirDocs)
- Reported make and model: BOEING A75
- Registry model: [Boeing A75N1(PT17)](https://openairdocs.org/model/boeing-a75n1-pt17) (registry code 1380134) (OpenAirDocs)
- Registry engine: [Continental R670-SERIES series](https://openairdocs.org/engine/continental-r670-series-series) (registry code 17016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Pierce 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 19780724020749A](https://openairdocs.org/incident/19780724020749A), Jul 24, 1978: Boeing N2S3, Lower Lake, CA, Substantial damage. Carb heat left on during initial climb.

## Other investigations on N707R (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 OAK71DVD52](https://openairdocs.org/ntsb/OAK71DVD52), Jun 19, 1971: Boeing PT-17 (N707R), Richmond, CA, 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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