# NTSB NYC73AN029: Brantly B-2B, N2254U, Duxbury, MA, August 15, 1972

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: August 15, 1972
- Place: Duxbury, MA · DUXBURY, MA
- Location: 42.0444° N, 70.6792° W: Placed by OpenAirDocs: center of Duxbury, MA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.0444&lon=-70.6792&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed, report January 22, 1973
- Report: Brief approved by the director
- Safety recommendations: Yes
- NTSB case key (mKey): 79549
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC73AN029
- Page: https://openairdocs.org/ntsb/NYC73AN029

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1189  72/8/15    DUXBURY,MASS        BRANTLY B-2B        CR-  1  0  0  NONCOMMERCIAL             PRIVATE, AGE 43, UNK/NR
        TIME - 1545                    N2254U              PX-  1  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, UNK/NR IN
                                       DAMAGE-DESTROYED    OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          MARSHIELD,MASS              LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: MAIN ROTOR                      IN FLIGHT: NORMAL CRUISE
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           ROTORCRAFT - ROTOR ASSEMBLIES: MAIN ROTOR BLADES
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
        REMARKS- RED M/R BLADE FAILED AND SEPARATED DUE FATIGUE. CAUSED BLUE M/R BLADE FAILURE AND SEPARATION.
```

## Aircraft

- Registration: [N2254U](https://openairdocs.org/deregistered/N2254U-1973-05-29), registration cancelled 1973-05-29, S/N 414 (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: Destroyed

## Other investigations on N2254U (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 UNK64X2866](https://openairdocs.org/ntsb/UNK64X2866), Jul 16, 1964: Brantly B2B (N2254U), Hazard, KY, 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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