# NTSB OAK71DVD52: Boeing PT-17, N707R, Richmond, CA, June 19, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 19, 1971
- Place: Richmond, CA · RICHMOND, CA
- Location: 37.9523° N, 122.3606° W: Placed by OpenAirDocs: center of Richmond, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.9523&lon=-122.3606&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report February 23, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 161844
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK71DVD52
- Page: https://openairdocs.org/ntsb/OAK71DVD52

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2271  71/6/19    RICHMOND,CALIF      BOEING PT-17        CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 21, 560
        TIME - 1945                    N707R               PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 80 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          OAKLAND,CALIF               MIDDLETOWN,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - LUBRICATING SYSTEM: LINES,HOSES,FITTING
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           MISCELLANEOUS ACTS,CONDITIONS - PRESSURE TOO LOW
           TERRAIN - HIGH VEGETATION
           TERRAIN - ROUGH/UNEVEN
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING OFF AIRPORT
                                  SUSPECTED MECHANICAL DISCREPANCY
        REMARKS- BRAID COVERED COMPOSITION OIL LINE TO OIL GAGE FAILED.
```

## Aircraft

- Registration: [N707R](https://openairdocs.org/aircraft/N707R), registered now, S/N 75-544, built 1940 (OpenAirDocs)
- Reported make and model: BOEING PT-17
- 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

## 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 OAK78DVG66](https://openairdocs.org/ntsb/OAK78DVG66), Jul 24, 1978: Boeing A75 (N707R), Lower Lake, 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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