# NTSB FTW81DPJ24: Bell 47D1, N7768, Okeene, OK, April 25, 1981

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 25, 1981
- Place: Okeene, OK · OKEENE, OK
- Location: 36.1171° N, 98.3167° W: Placed by OpenAirDocs: center of Okeene, OK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.1171&lon=-98.3167&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report August 4, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 125657
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW81DPJ24
- Page: https://openairdocs.org/ntsb/FTW81DPJ24

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1281  81/4/25    OKEENE,OK           BELL 47D1           CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1800                    N7768               PX-  0  0  0  DUAL                      AGE 49, 8228 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            1218 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - OKEENE MUNI
        DEPARTURE POINT             INTENDED DESTINATION
          OKEENE,OK                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED SPEED AND ALTITUDE
           PILOT IN COMMAND - FAILED TO INITIATE GO-AROUND
```

## Aircraft

- Registration: [N7768](https://openairdocs.org/deregistered/N7768-2013-07-08), registration cancelled 2013-07-08, S/N K9124, built 1969 (OpenAirDocs)
- Reported make and model: BELL 47D1
- Registry model: [Bell - K Copter 47D1](https://openairdocs.org/model/bell-k-copter-47d1) (registry code 1180843) (OpenAirDocs)
- Registry engine: [Lycoming VO-435 series](https://openairdocs.org/engine/lycoming-vo-435-series) (registry code 41525, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Okeene Muni

## 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 19810425029809A](https://openairdocs.org/incident/19810425029809A), Apr 25, 1981: Bell 47D1, Okeene, OK, Substantial damage. Failed to initiate a timely power recovery from practice autorotation with excessive forward speed.

## Other investigations on N7768 (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 CHI91FA294](https://openairdocs.org/ntsb/CHI91FA294), Sep 15, 1991: Bell-K Copter 47D1 (N7768), Laurie, MO, destroyed, 3 fatal. Probable cause: POOR JUDGEMENT OF THE PILOT, DUE TO IMPAIRMENT FROM CONSUMPTION OF ALCOHOLIC BEVERAGE BEFORE FLIGHT, HIS INTENTIONAL BUZZING, AND HIS INADEQUATE VISUAL LOOKOUT (FAILURE TO SEE-AND-AVOID POWER LINES).

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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