# NTSB UNK64X1834: Brantly B2B, N2170U, Tulsa, OK, May 18, 1964

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: May 18, 1964
- Place: Tulsa, OK · TULSA, OK
- Location: 36.1540° N, 95.9928° W: Placed by OpenAirDocs: center of Tulsa, OK, within about 8 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.1540&lon=-95.9928&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report February 1, 1965
- Report: Brief approved by the director
- NTSB case key (mKey): 184912
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X1834
- Page: https://openairdocs.org/ntsb/UNK64X1834

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0190  64/5/18    TULSA OKLA          BRANTLY B2B         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1400                    N2170U              PX-  0  0  0  BUSINESS                  AGE 25, 6000 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            15 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: SPIN                                              LANDING: GO-AROUND
        PROBABLE CAUSE(S)
           WEATHER - UNFAVORABLE WIND CONDITIONS
           PILOT IN COMMAND - EXERCISED POOR JUDGMENT
           TERRAIN - HIGH OBSTRUCTIONS
        FACTOR(S)
           WEATHER - HIGH DENSITY ALTITUDE
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          170                                                       16
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
```

## Aircraft

- Registration: [N2170U](https://openairdocs.org/deregistered/N2170U-1971-09-28), registration cancelled 1971-09-28, S/N 332, built 1963 (OpenAirDocs)
- Reported make and model: BRANTLY B2B
- Registry model: [Brantly B-2B](https://openairdocs.org/model/brantly-b-2b) (registry code 1440506) (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: Destroyed

## Other investigations on N2170U (2)

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 OAK69F0230](https://openairdocs.org/ntsb/OAK69F0230), Feb 1, 1969: Brantly B-2B (N2170U), Benicia, CA, destroyed
- [NTSB DEN66A0003](https://openairdocs.org/ntsb/DEN66A0003), Jul 3, 1965: Brantly B2B (N2170U), Phoenix, AZ, 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.

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