# NTSB NYC71AN108: Enstrom F-28-A, N4923, Boston, MA, May 4, 1971

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: May 4, 1971
- Place: Boston, MA · BOSTON, MA
- Location: 42.3584° N, 71.0598° W: Placed by OpenAirDocs: center of Boston, MA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.3584&lon=-71.0598&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report April 11, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 162341
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC71AN108
- Page: https://openairdocs.org/ntsb/NYC71AN108

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3242   71/5/4    BOSTON,MASS         ENSTROM F-28-A      CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 37, 7400
        TIME - 2224                    N4923               PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 100 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - LOGAN
        DEPARTURE POINT             INTENDED DESTINATION
          BOSTON,MASS                 MARSHFIELD,MASS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 TAKEOFF: VERTICAL
           COLLISION WITH GROUND/WATER: UNCONTROLLED                LANDING: OTHER
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
           PILOT IN COMMAND - SPONTANEOUS-IMPROPER ACTION
        FACTOR(S)
           WEATHER - UNFAVORABLE WIND CONDITIONS
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST                                                  10000
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  WIND DIRECTION-DEGREES
          NONE                                                     270
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           20                                                      VFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- WND 20K,GUSTS TO 25K.HEL ROTD TO R ON LIFT-OFF,PLT ADDED COLLECTIVE TO AVOID PSNL,LOST DRCTNL CTL.
```

## Aircraft

- Registration: [N4923](https://openairdocs.org/deregistered/N4923-1974-08-05), registration cancelled 1974-08-05, S/N 049, built 1971 (OpenAirDocs)
- Reported make and model: ENSTROM F-28-A
- Registry model: [Enstrom F-28A](https://openairdocs.org/model/enstrom-f-28a) (registry code 3300406) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed
- Airport: Logan

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.