# NTSB IAD75DIA19: Bell 47G4, N420MC, Bowie, MD, April 18, 1975

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 18, 1975
- Place: Bowie, MD · BOWIE, MD
- Location: 38.9547° N, 76.7388° W: Placed by OpenAirDocs: center of Bowie, MD, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.9547&lon=-76.7388&mi=10
- Phase of flight: [Emergency descent](https://openairdocs.org/ntsb-phases/600) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 23, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 134588
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD75DIA19
- Page: https://openairdocs.org/ntsb/IAD75DIA19

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2253  75/4/18    BOWIE,MD            BELL 47G4           CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 50, 1230
        TIME - 0830                    N420MC              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, ALL IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          RIVERDALE,MD                BOWIE,MD
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: AUTOROTATIVE DESCENT
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           MISCELLANEOUS ACTS,CONDITIONS - SIMULATED CONDITIONS
           PILOT IN COMMAND - MISJUDGED SPEED AND ALTITUDE
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        REMARKS- HARD LNDG,PULLED BACK ON CYCLIC TAIL ROTOR STRUCK GND.
```

## Aircraft

- Registration: [N420MC](https://openairdocs.org/deregistered/N420MC-2018-01-19), registration cancelled 2018-01-19, S/N 3366, built 1965 (OpenAirDocs)
- Reported make and model: BELL 47G4
- Registry model: [Bell 47G-4](https://openairdocs.org/model/bell-47g-4) (registry code 1181030) (OpenAirDocs)
- Registry engine: [Lycoming VO-540 series](https://openairdocs.org/engine/lycoming-vo-540-series) (registry code 41534, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

## 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 19750418007999A](https://openairdocs.org/incident/19750418007999A), Apr 18, 1975: Bell 47G4, Bowie, MD, Substantial damage. Hard lndg,pulled back on cyclic tail rotor struck gnd.

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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