# NTSB UNK64X0433: Waco UPF7, N20971, San Fernand, CA, February 2, 1964

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: February 2, 1964
- Place: San Fernand, CA · SAN FERNAND, CA
- Location: 34.2887° N, 118.4362° W: Placed by OpenAirDocs: center of San Fernando, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.2887&lon=-118.4362&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed
- Report: Brief approved by the director
- NTSB case key (mKey): 185571
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X0433
- Page: https://openairdocs.org/ntsb/UNK64X0433

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0200   64/2/2    SAN FERNAND CALIF   WACO UPF7           CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 25, 103
        TIME - 1200                    N20971              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 14 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           UNDERSHOOT                                               LANDING: FINAL APPROACH
           COLLIDED WITH: WIRES/POLES                               LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OBJECTS OR OBSTRUCTIONS
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: UNMARKED OBSTRUCTIONS
```

## Aircraft

- Registration: [N20971](https://openairdocs.org/aircraft/N20971), registered now, S/N 5317, built 1940 (OpenAirDocs)
- Reported make and model: WACO UPF7
- Registry model: [Waco UPF-7](https://openairdocs.org/model/waco-upf-7) (registry code 9601302) (OpenAirDocs)
- Registry engine: [Continental W670-6N](https://openairdocs.org/engine/continental-w670-6n) (registry code 17318, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N20971 (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 LAX95LA166](https://openairdocs.org/ntsb/LAX95LA166), Apr 22, 1995: Waco UPF-7 (N20971), Chino, CA, substantial damage. Probable cause: failure of the attachment link for the master cylinder return spring, which allowed the left brake to lock.

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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