# NTSB IAD75FIA20: Enstrom F28A, N4469, Clifton, VA, April 24, 1975

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: April 24, 1975
- Place: Clifton, VA · CLIFTON, VA
- Location: 38.7801° N, 77.3860° W: Placed by OpenAirDocs: center of Clifton, VA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.7801&lon=-77.3860&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 1 uninjured
- Status: Completed, report June 5, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 132403
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD75FIA20
- Page: https://openairdocs.org/ntsb/IAD75FIA20

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0893  75/4/24    CLIFTON,VA          ENSTROM F28A        CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, AGE 27, 2133
        TIME - 1700                    N4469               PX-  0  0  1  POLICE PATROL             TOTAL HOURS, 900 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          CHANTILLY,VA                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: HOVERING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
           PILOT IN COMMAND - DIVERTED ATTENTION FROM OPERATION OF AIRCRAFT
        REMARKS- ATTN DIVERTED TO A SUSPICIOUS CAR LOCATED IN A WOODED AREA.
```

## Aircraft

- Registration: [N4469](https://openairdocs.org/deregistered/N4469-1984-09-11), registration cancelled 1984-09-11, S/N 021, built 1968 (OpenAirDocs)
- Reported make and model: ENSTROM F28A
- Registry model: [Enstrom F-28A](https://openairdocs.org/model/enstrom-f-28a) (registry code 3300406) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed

## 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 19750424009369A](https://openairdocs.org/incident/19750424009369A), Apr 24, 1975: Enstrm F28A, Clifton, VA, Substantial damage. Attn diverted to a suspicious car located in a wooded area.

## Other investigations on N4469 (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 NYC73FIA08](https://openairdocs.org/ntsb/NYC73FIA08), Dec 26, 1972: Enstrom F-28A (N4469), Fairfax, VA, substantial damage

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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