# NTSB NYC76FGM34: Brantly B-2B, N2255U, Greenburg, PA, June 8, 1976

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 8, 1976
- Place: Greenburg, PA · GREENBURG, PA
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 16, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 155117
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC76FGM34
- Page: https://openairdocs.org/ntsb/NYC76FGM34

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4168   76/6/8    GREENBURG,PA        BRANTLY B-2B        CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 49, 850
        TIME - 1100                    N2255U              PX-  0  0  0  BUSINESS                  TOTAL HOURS, 228 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          GREENBURG,PA                WEST MIFFLIN,PA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      TAKEOFF: INITIAL CLIMB
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: TAIL ROTOR DRIVE SHAFT ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        REMARKS- T/R DRIVESHAFT SHEARED,BLADES SEPD.CAUSE OF OVERLOAD NOT DETERMINED.
```

## Aircraft

- Registration: [N2255U](https://openairdocs.org/deregistered/N2255U-1984-04-17), registration cancelled 1984-04-17, S/N 415 (OpenAirDocs)
- Reported make and model: BRANTLY B-2B
- Registry model: [Brantly B-2B](https://openairdocs.org/model/brantly-b-2b) (registry code 1440506) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

## 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 19760608020279A](https://openairdocs.org/incident/19760608020279A), Jun 8, 1976: Hynes B2B, PA, Substantial damage

## Other investigations on N2255U (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 ATL82FIJ01](https://openairdocs.org/ntsb/ATL82FIJ01), May 9, 1982: Brantley B-2B (N2255U), Athens, WV, substantial damage, 1 fatal
- [NTSB UNK64X2942](https://openairdocs.org/ntsb/UNK64X2942), Jul 20, 1964: Brantly B2B (N2255U), Kutztown, PA, 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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