# NTSB CHI77FEC21: Enstrom F-28A, N9598, Howell, MI, March 17, 1977

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: March 17, 1977
- Place: Howell, MI · HOWELL, MI
- Location: 42.6081° N, 83.9343° W: Placed by OpenAirDocs: center of Howell, MI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.6081&lon=-83.9343&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 2 serious
- Status: Completed, report June 9, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 157510
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI77FEC21
- Page: https://openairdocs.org/ntsb/CHI77FEC21

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0729  77/3/17    HOWELL,MI           ENSTROM F-28A       CR-  0  1  0  NONCOMMERCIAL             PRIVATE, AGE 24, 65 TOTAL
        TIME - 1645                    N9598               PX-  0  1  0  PLEASURE/PERSONAL TRANSP  HOURS, ALL IN TYPE, NOT
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - NORTHLAND HELIPRT
        DEPARTURE POINT             INTENDED DESTINATION
          HOWELL,MI                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: POWER-ON DESCENT
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
         FIRE AFTER IMPACT
        REMARKS- CFI IN RIGHT SEAT TOOK CONTROL AFTER 1ST ACCIDENT. PURPOSE OF FLT - REPOSITION ACFT.
```

## Aircraft

- Registration: [N9598](https://openairdocs.org/deregistered/N9598-1977-07-12), registration cancelled 1977-07-12, S/N 162 (OpenAirDocs)
- Reported make and model: ENSTROM F-28A
- Registry model: [Enstrom F-28A](https://openairdocs.org/model/enstrom-f-28a) (registry code 3300406) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed
- Airport: Northland Heliprt

## 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 19770317008339A](https://openairdocs.org/incident/19770317008339A), Mar 17, 1977: Enstrm F28A, Howell, MI, Destroyed. CFI in right seat took control after 1st accident. Purpose of flt - reposition acft.

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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