# NTSB LAX73FUG38: Harvard MK4, N20425, Rubidoux, CA, February 25, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: February 25, 1973
- Place: Rubidoux, CA · RUBIDOUX, CA
- Location: 33.9961° N, 117.4056° W: Placed by OpenAirDocs: center of Rubidoux, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.9961&lon=-117.4056&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report April 13, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 169997
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX73FUG38
- Page: https://openairdocs.org/ntsb/LAX73FUG38

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0306  73/2/25    RUBIDOUX,CALIF      HARVARD MK4         CR-  0  0  1  NONCOMMERCIAL             ATP,FLIGHT INSTR., AGE
        TIME - 1130                    N20425              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  29, 2630 TOTAL HOURS, 270
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT -  RIVERSIDE FLABOB
        DEPARTURE POINT             INTENDED DESTINATION
          VAN NUYS,CALIF              RUBIDOUX,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           UNDERSHOOT                                               LANDING: FINAL APPROACH
           COLLIDED WITH: DIRT BANK                                 LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - DIVERTED ATTENTION FROM OPERATION OF AIRCRAFT
           PILOT IN COMMAND - MISJUDGED DISTANCE,SPEED,AND ALTITUDE
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - CONGESTED TRAFFIC-PATTERN
```

## Aircraft

- Registration: [N20425](https://openairdocs.org/deregistered/N20425-2012-10-16), registration cancelled 2012-10-16, S/N CCF-4-216, built 1952 (OpenAirDocs)
- Reported make and model: HARVARD MK4
- Registry model: [North American HARVARD 4](https://openairdocs.org/model/north-american-harvard-4) (registry code 6400430) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport:  Riverside Flabob

## 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 19730225004279A](https://openairdocs.org/incident/19730225004279A), Feb 25, 1973: Namer HARVARD*, Rubidoux, CA, Substantial damage

## Other investigations on N20425 (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 NYC80FHD14](https://openairdocs.org/ntsb/NYC80FHD14), May 10, 1980: Harvard MK-4 (N20425), Turnersville, NJ, 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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.