# NTSB OAK72DVD50: Navion A, N91559, Tracy, CA, May 18, 1972

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 18, 1972
- Place: Tracy, CA · TRACY, CA
- Location: 37.7274° N, 121.4522° W: Placed by OpenAirDocs: center of Tracy, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.7274&lon=-121.4522&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report February 13, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 167129
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK72DVD50
- Page: https://openairdocs.org/ntsb/OAK72DVD50

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1822  72/5/18    TRACY,CALIF         NAVION A            CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 0850                    N91559              PX-  0  0  0  DUAL                      AGE 30, 1776 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            175 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - TRACY MUNI
        DEPARTURE POINT             INTENDED DESTINATION
          TRACY,CALIF                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
           DUAL STUDENT - IMPROPER LEVEL OFF
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - POORLY PLANNED APPROACH
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
```

## Aircraft

- Registration: [N91559](https://openairdocs.org/aircraft/N91559), registered now, S/N NAV-4-336 (OpenAirDocs)
- Reported make and model: NAVION A
- Registry model: [North American NAVION](https://openairdocs.org/model/north-american-navion) (registry code 6150130) (OpenAirDocs)
- Registry engine: [Continental E225 series](https://openairdocs.org/engine/continental-e225-series) (registry code 17015, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Tracy Muni

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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