# NTSB NYC79FFA15: Enstrom F-28C, N604H, Schroon Lake, NY, March 17, 1979

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: March 17, 1979
- Place: Schroon Lake, NY · SCHROON LAKE, NY
- Location: 43.8351° N, 73.7669° W: Placed by OpenAirDocs: center of Schroon Lake, NY, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.8351&lon=-73.7669&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 1 uninjured
- Status: Completed, report April 25, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 137379
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC79FFA15
- Page: https://openairdocs.org/ntsb/NYC79FFA15

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0440  79/3/17    SCHROON LAKE,NY     ENSTROM F-28C       CR-  0  1  0  NONCOMMERCIAL             COMMERCIAL, AGE 46, 566
        TIME - 1710                    N604H               PX-  0  0  1  CORP/EXEC                 TOTAL HOURS, 178 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          MONTREAL,QUEBEC,CAN         ALBANY,NY
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: FENCE,FENCEPOSTS                          LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: OTHER
        REMARKS- NUT (AN924-6D) IN AIR FILTER HOUSING INJESTED BY TURBOCHARGER. INLET TURBINE BLADES DMGE TO ENGINE
```

## Aircraft

- Registration: [N604H](https://openairdocs.org/deregistered/N604H-1988-12-28), registration cancelled 1988-12-28, S/N 369 (OpenAirDocs)
- Reported make and model: ENSTROM F-28C
- Registry model: [Enstrom F-28C](https://openairdocs.org/model/enstrom-f-28c) (registry code 3300407) (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 19790317004889A](https://openairdocs.org/incident/19790317004889A), Mar 17, 1979: Enstrm F28C, Schroon Lake, NY, Substantial damage. AN924-6D nut installed inside the air filter housing came loose and was injestedby the supercharger.

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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