# NTSB UNK65X0767: Brantly B2, N5947X, Muskogee, OK, November 20, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: November 20, 1964
- Place: Muskogee, OK · MUSKOGEE, OK
- Location: 35.7479° N, 95.3697° W: Placed by OpenAirDocs: center of Muskogee, OK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=35.7479&lon=-95.3697&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report February 10, 1965
- Report: Brief approved by the director
- NTSB case key (mKey): 181803
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK65X0767
- Page: https://openairdocs.org/ntsb/UNK65X0767

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0834  64/11/20 NR.MUSKOGEE OKLA      BRANTLY B2          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 32, 479
        TIME - 1315                    N5947X              PX-  0  0  0  BUSINESS                  TOTAL HOURS, 159 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: TREES                                     LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           PILOT IN COMMAND - MISMANAGEMENT OF FUEL
           MISCELLANEOUS ACTS,CONDITIONS - INATTENTIVE TO FUEL SUPPLY
           MISCELLANEOUS ACTS,CONDITIONS - FUEL EXHAUSTION
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
```

## Aircraft

- Registration: [N5947X](https://openairdocs.org/deregistered/N5947X-2013-04-24), registration cancelled 2013-04-24, S/N 86, built 1961 (OpenAirDocs)
- Reported make and model: BRANTLY B2
- Registry model: [Brantly B-2](https://openairdocs.org/model/brantly-b-2) (registry code 1440502) (OpenAirDocs)
- Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: 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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.