# NTSB FTW79DPA17: Grum-Amer AA-1C, N9646U, Dallas, TX, May 10, 1979

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 10, 1979
- Place: Dallas, TX · DALLAS, TX
- Location: 32.7831° N, 96.8067° W: Placed by OpenAirDocs: center of Dallas, TX, within about 10 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.7831&lon=-96.8067&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report June 11, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 136623
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW79DPA17
- Page: https://openairdocs.org/ntsb/FTW79DPA17

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0799  79/5/10    DALLAS,TX           GRUM-AMER AA-1C     CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1645                    N9646U              PX-  0  0  0  DUAL                      AGE 25, 364 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            8 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - DALLAS AIRPARK
        DEPARTURE POINT             INTENDED DESTINATION
          DALLAS,TX                   ADDISON,TX
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           NOSE OVER/DOWN                                           TAKEOFF: RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO ABORT TAKEOFF
        FACTOR(S)
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: WET RUNWAY
           MISCELLANEOUS ACTS,CONDITIONS - RAN OFF END OF RUNWAY
           WEATHER - SUDDEN WINDSHIFT
        WEATHER BRIEFING - RECIEVED RECORDED BRIEFING BY LFMF RADIO
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST                                                  4000
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     RAIN
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  RELATIVE BEARING OF WIND
          NONE                                                     TAIL WIND 158-202 DEGREES
        TEMPERATURE-F                                            WIND DIRECTION-DEGREES
           78                                                      360
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           8                                                       VFR
        TYPE OF FLIGHT PLAN
          NONE
```

## Aircraft

- Registration: [N9646U](https://openairdocs.org/deregistered/N9646U-2018-01-25), registration cancelled 2018-01-25, S/N AA1C0084, built 1977 (OpenAirDocs)
- Reported make and model: GRUM-AMER AA-1C
- Registry model: [Grumman American Avn. AA-1C](https://openairdocs.org/model/grumman-american-avn-aa-1c) (registry code 3960100) (OpenAirDocs)
- Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Dallas Airpark

## 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 19790510008859A](https://openairdocs.org/incident/19790510008859A), May 10, 1979: Gulstm AA1C, Hebron, TX, Substantial damage. Takeoff was made from a wet runway. Acft failed to clear a fence at the end of the field.

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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