# NTSB OAK77FVM17: Aero Comdr 720, N138K, San Jose, CA, June 10, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 10, 1977
- Place: San Jose, CA · SAN JOSE, CA
- Location: 37.3394° N, 121.8950° W: Placed by OpenAirDocs: center of San Jose, CA, within about 8 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.3394&lon=-121.8950&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report October 6, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 147224
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK77FVM17
- Page: https://openairdocs.org/ntsb/OAK77FVM17

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1939  77/6/10    SAN JOSE,CA         AERO COMDR 720      CR-  0  0  1  INSTRUCTIONAL             PRIVATE, AGE 33, 313
        TIME - 1930                    N138K               PX-  0  0  1  DUAL                      TOTAL HOURS, 67 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - SAN JOSE
        DEPARTURE POINT             INTENDED DESTINATION
          SAN JOSE,CA                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 TAXI: FROM LANDING
           COLLIDED WITH: PARKED AIRCRAFT                           TAXI: FROM LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - ATTEMPTED OPERATION W/KNOWN DEFICIENCIES IN EQUIPMENT
           SYSTEMS - HYDRAULIC SYSTEM: RESERVOIR,LINES,FITTINGS
           MISCELLANEOUS ACTS,CONDITIONS - BURST
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER EMERGENCY PROCEDURES
        REMARKS- ACFT N42807 & N7930C SUBSTANTIALLY DMGD. PLT CONTINUED TAXIING AFTER TOTAL HYD FAILURE.
```

## Aircraft

- Registration: [N138K](https://openairdocs.org/aircraft/N138K), registered now, S/N 720-621-2 (OpenAirDocs)
- Reported make and model: AERO COMDR 720
- Registry model: [Aero Commander 720](https://openairdocs.org/model/aero-commander-720) (registry code 0141802) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: San Jose

## 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 19770610021339A](https://openairdocs.org/incident/19770610021339A), Jun 10, 1977: Rkwell 720RKWELL, San Jose, CA, Substantial damage. Acft N42807 & N7930C substantially dmgd. Plt continued taxiing after total hyd failure.

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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