# NTSB OAK71AP030: Piper PA-30, N7667Y, H.Moon Bay, CA, December 31, 1970

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: December 31, 1970
- Place: H.Moon Bay, CA · H.MOON BAY, CA
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 3 fatal
- Status: Completed, report April 5, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 159310
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK71AP030
- Page: https://openairdocs.org/ntsb/OAK71AP030

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2577  70/12/31   H.MOON BAY,CALIF    PIPER PA-30         CR-  2  0  0  INSTRUCTIONAL             ATP,FLIGHT INSTR., AGE
        TIME - 1315                    N7667Y              PX-  1  0  0  DUAL                      38, 3332 TOTAL HOURS, 24
                                       DAMAGE-DESTROYED    OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - HALF MOON BAY
        DEPARTURE POINT             INTENDED DESTINATION
          H.MOON BAY,CALIF            SAN CARLOS,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           STALL: SPIN                                              TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
           DUAL STUDENT - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - INCORRECT TRIM SETTING
           MISCELLANEOUS ACTS,CONDITIONS - TOUCH AND GO LANDING
        REMARKS- FUEL SELECT L MAIN,R CROSSFEED.VALIDITY UNDTRMND DUE IMPACT DMG.STABILATOR TRIM APRX FULL NOSE UP.
```

## Aircraft

- Registration: [N7667Y](https://openairdocs.org/deregistered/N7667Y-1971-02-25), registration cancelled 1971-02-25, S/N 30-744 (OpenAirDocs)
- Reported make and model: PIPER PA-30
- Registry model: [Piper PA-30](https://openairdocs.org/model/piper-pa-30) (registry code 7103002) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Half Moon Bay

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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