# NTSB LAX74AL036: Piper PA-23, N6694Y, Alpine, CA, November 15, 1973

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: November 15, 1973
- Place: Alpine, CA · ALPINE, CA
- Location: 32.8428° N, 116.7554° W: Placed by OpenAirDocs: center of Alpine, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.8428&lon=-116.7554&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 3 fatal
- Status: Completed, report May 28, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 187785
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX74AL036
- Page: https://openairdocs.org/ntsb/LAX74AL036

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4144  73/11/15   ALPINE,CALIF        PIPER PA-23         CR-  2  0  0  NONCOMMERCIAL             COMMERCIAL, AGE 56, 1169
        TIME - 1825                    N6694Y              PX-  1  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 473 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          SAN DIEGO,CALIF             TUCSON,ARIZ
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           MISCELLANEOUS ACTS,CONDITIONS - RPM-UNCONTROLLABLE-OVERSPEED
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER EMERGENCY PROCEDURES
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
         FIRE AFTER IMPACT
        REMARKS- CAUSE OF L ENG OVRSPD CONDITION NOT DETERMINED.ENG NOT FEATHERED.
```

## Aircraft

- Registration: [N6694Y](https://openairdocs.org/deregistered/N6694Y-1974-04-23), registration cancelled 1974-04-23, S/N 27-4402 (OpenAirDocs)
- Reported make and model: PIPER PA-23
- Registry model: [Piper PA-23-250 (6PCLM)](https://openairdocs.org/model/piper-pa-23-250-6pclm) (registry code 7102313) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

## 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 19731115042899A](https://openairdocs.org/incident/19731115042899A), Nov 15, 1973: Piper PA23250, Alpine, CA, Destroyed, 1 fatal. Cause of l eng ovrspd condition not determined. Eng not feathered.

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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