# NTSB OAK67A0014: Piper PA-23, N5749Y, Hayward, CA, July 27, 1966

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: July 27, 1966
- Place: Hayward, CA · HAYWARD, CA
- Location: 37.6688° N, 122.0808° W: Placed by OpenAirDocs: center of Hayward, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.6688&lon=-122.0808&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report March 15, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 122385
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK67A0014
- Page: https://openairdocs.org/ntsb/OAK67A0014

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0636  66/7/27    HAYWARD CALIF       PIPER PA-23         CR-  1  0  0  NONCOMMERCIAL             PRIVATE, AGE 53, 1557
        TIME - 0420                    N5749Y              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, UNK/NR IN
                                       DAMAGE-DESTROYED    OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - HAYWARD AIR TERM
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL                                                    IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - CONTINUED VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS
           PILOT IN COMMAND - SPATIAL DISORIENTATION
           PILOT IN COMMAND - PHYSICAL IMPAIRMENT
           MISCELLANEOUS ACTS,CONDITIONS - ALCOHOLIC IMPAIRMENT OF EFFICIENCY AND JUDGMENT
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
           WEATHER - LOW CEILING
           WEATHER - OBSTRUCTIONS TO VISION
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST                                                  800
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          HAZE                                                      58
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
          CALM                                                     IFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- WRECKAGE IN SHALLOW SALT POND.PILOT BLOOD ALCOHOL LEVEL 0.10 PERCENT.
```

## Aircraft

- Registration: [N5749Y](https://openairdocs.org/deregistered/N5749Y-1976-06-22), registration cancelled 1976-06-22, S/N 27-2873, built 1965 (OpenAirDocs)
- Reported make and model: PIPER PA-23
- Registry model: [Piper PA-23-250](https://openairdocs.org/model/piper-pa-23-250) (registry code 7102308) (OpenAirDocs)
- Registry engine: [Lycoming TI0-540 series](https://openairdocs.org/engine/lycoming-ti0-540-series) (registry code 41533, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Hayward Air Term

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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