# NTSB IAD70D0076: Beech D50C, N793A, Gaithersberg, MD, September 11, 1969

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 11, 1969
- Place: Gaithersberg, MD · GAITHERSBERG, MD
- Location: 39.1486° N, 77.1951° W: Placed by OpenAirDocs: center of Gaithersburg, MD, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.1486&lon=-77.1951&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report May 6, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 156200
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD70D0076
- Page: https://openairdocs.org/ntsb/IAD70D0076

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3905  69/9/11    GAITHERSBERG,MD     BEECH D50C          CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1000                    N793A               PX-  0  0  0  DUAL                      AGE 31, 3102 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            322 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - MONGOMERY COUNTY
        DEPARTURE POINT             INTENDED DESTINATION
          GAITHERSBERG,MD             LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: RUN
           COLLIDED WITH: PARKED AIRCRAFT                           TAKEOFF: RUN
        PROBABLE CAUSE(S)
           DUAL STUDENT - FAILED TO MAINTAIN DIRECTIONAL CONTROL
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER EMERGENCY PROCEDURES
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SIMULATED CONDITIONS
        REMARKS- SIMULATED ENG FAILURE BLO VMC,STRUCK PARKED ACFT PIPER N7778P,PIPER N9017J AND BEECH N8709M.
```

## Aircraft

- Registration: N793A (not matched to a registry record)
- Reported make and model: BEECH D50C
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Mongomery County

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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