# NTSB NYC67A0067: Bell 47J-2, N73948, Brookline, MA, October 26, 1966

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: October 26, 1966
- Place: Brookline, MA · BROOKLINE, MA
- Location: 42.3239° N, 71.1420° W: Placed by OpenAirDocs: center of Brookline, MA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.3239&lon=-71.1420&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 30, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 121025
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC67A0067
- Page: https://openairdocs.org/ntsb/NYC67A0067

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-1189  66/10/26   BROOKLINE,MASS      BELL 47J-2          CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1940                    N73948              PX-  0  0  0  COMMUTER AIR CARRIER      AGE 46, 8183 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0  AIR TAXI-PASSG S-D        935 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: OBJECT                                    LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - COOLING SYSTEM: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           TERRAIN - HIDDEN OBSTRUCTIONS
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- TEETH IN FAN DRIVE GEARS PN 47-620-207 AND-530 FAILED.LANDED ON HIDDEN 2X6 TIMBER,TAIL RTR HIT GND
```

## Aircraft

- Registration: [N73948](https://openairdocs.org/deregistered/N73948-2013-05-07), registration cancelled 2013-05-07, S/N 2836 (OpenAirDocs)
- Reported make and model: BELL 47J-2
- Registry model: [Bell 47J-2](https://openairdocs.org/model/bell-47j-2) (registry code 1181104) (OpenAirDocs)
- Registry engine: [Lycoming VO-540 series](https://openairdocs.org/engine/lycoming-vo-540-series) (registry code 41534, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N73948 (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 NYC66A0152](https://openairdocs.org/ntsb/NYC66A0152), Jun 18, 1966: Bell 47J-2 (N73948), Burlington, MA, 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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