# NTSB MIA77DKJ37: Bell 47D1, N74898, Ozark, AL, May 15, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 15, 1977
- Place: Ozark, AL · OZARK, AL
- Location: 31.4591° N, 85.6405° W: Placed by OpenAirDocs: center of Ozark, AL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=31.4591&lon=-85.6405&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report June 7, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 158322
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA77DKJ37
- Page: https://openairdocs.org/ntsb/MIA77DKJ37

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0925  77/5/15    OZARK,AL            BELL 47D1           CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 0830                    N74898              PX-  0  0  0  DUAL                      AGE 28, 3127 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            8 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - BLACKWELL
        DEPARTURE POINT             INTENDED DESTINATION
          OZARK,AL                    LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            LANDING: FINAL APPROACH
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- LNDD TAIL LOW ON A DOWNSLOPE.
```

## Aircraft

- Registration: [N74898](https://openairdocs.org/aircraft/N74898), registered now, S/N AIAT-68 (OpenAirDocs)
- Reported make and model: BELL 47D1
- Registry model: [Bell 47D1](https://openairdocs.org/model/bell-47d1) (registry code 1180802) (OpenAirDocs)
- Registry engine: [Franklin 6V-335 series](https://openairdocs.org/engine/franklin-6v-335-series) (registry code 27039, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Blackwell

## 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 19770515010649A](https://openairdocs.org/incident/19770515010649A), May 15, 1977: Bell 47D1, Ozark, AL, Substantial damage. Lndd tail low on a downslope.

## Other investigations on N74898 (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 CHI08LA151](https://openairdocs.org/ntsb/CHI08LA151), Jun 1, 2008: Bell 47D1 (N74898), Carrollton, OH, substantial damage. Probable cause: The airframe vibration for an undetermined reason.

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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