# NTSB OAK77DVD50: Piper PA-28R, N1139X, Novato, CA, August 6, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 6, 1977
- Place: Novato, CA · NOVATO, CA
- Location: 38.0851° N, 122.5483° W: Placed by OpenAirDocs: center of Novato, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.0851&lon=-122.5483&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report September 15, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 146705
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK77DVD50
- Page: https://openairdocs.org/ntsb/OAK77DVD50

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1835   77/8/6    NOVATO,CA           PIPER PA-28R        CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 49, 177
        TIME - 1615                    N1139X              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 20 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - GNOSS FIELD
        DEPARTURE POINT             INTENDED DESTINATION
          HAYWARD,CA                  NOVATO,CA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
           COLLIDED WITH: DITCHES                                   LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER COMPENSATION FOR WIND CONDITIONS
        FACTOR(S)
           WEATHER - UNFAVORABLE WIND CONDITIONS
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, BY RADIO
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  RELATIVE BEARING OF WIND
          NONE                                                     LEFT CROSS WIND 248-292 DEGREES
        TEMPERATURE-F                                            WIND DIRECTION-DEGREES
           72                                                      220
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           10                                                      VFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- WIND GUST 15K.
```

## Aircraft

- Registration: [N1139X](https://openairdocs.org/deregistered/N1139X-1992-05-18), registration cancelled 1992-05-18, S/N 28R7535257 (OpenAirDocs)
- Reported make and model: PIPER PA-28R
- Registry model: [Piper PA-28R-200](https://openairdocs.org/model/piper-pa-28r-200) (registry code 7102811) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Gnoss Field

## 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 19770806023879A](https://openairdocs.org/incident/19770806023879A), Aug 6, 1977: Piper PA28R200, Novato, CA, Substantial damage. Wind gust 15K.

## Other investigations on N1139X (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 ATL89FA090](https://openairdocs.org/ntsb/ATL89FA090), Feb 21, 1989: Piper PA-28R-200 (N1139X), Tipp City, OH, destroyed. Probable cause: IMPROPER PLANNING BY THE PILOT RESULTING IN FUEL EXHAUSTION. THE PILOTS LACK OF EQUIPMENT AND ABILITY TO HANDLE THE WEATHER SITUATION WAS IGNORED BY THE PILOT IN HIS PLANNING FOR THE FLIGHT.

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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