# NTSB NYC76AN031: Raven S55A, N51508, Greenwich, CT, September 7, 1975

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 7, 1975
- Place: Greenwich, CT · GREENWICH, CT
- Location: 41.0278° N, 73.6269° W: Placed by OpenAirDocs: center of Greenwich, CT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.0278&lon=-73.6269&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 30, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 151075
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC76AN031
- Page: https://openairdocs.org/ntsb/NYC76AN031

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3300   75/9/7    GREENWICH,CT        RAVEN S55A          CR-  0  0  1  INSTRUCTIONAL             STUDENT, AGE UNK/NR, 5
        TIME - 1430                    N51508              PX-  0  0  0  TRAINING                  TOTAL HOURS, ALL IN TYPE,
                                       DAMAGE-NONE         OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          GREENWICH,CT                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           MISCELLANEOUS                                            TAKEOFF: OTHER
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
           PILOT IN COMMAND - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC.
           MISCELLANEOUS ACTS,CONDITIONS - CREW COORDINATION-POOR
        REMARKS- BALLOON TETHERED BY GROUND CREWMAN WHO RELEASED GRIP ON HAND LINE AT 20FT AND FELL TO GROUND.
```

## Aircraft

- Registration: [N51508](https://openairdocs.org/deregistered/N51508-2014-10-27), registration cancelled 2014-10-27, S/N S55A-130, built 1973 (OpenAirDocs)
- Reported make and model: RAVEN S55A
- Registry model: [Raven S55A](https://openairdocs.org/model/raven-s55a) (registry code 7480402) (OpenAirDocs)
- Registry engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000, none) (OpenAirDocs)
- Category: Balloon
- Engines: none
- Damage: No 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 19750907033549A](https://openairdocs.org/incident/19750907033549A), Sep 7, 1975: Raven S55A, Greenwich, MA. Balloon tethered by ground crewman who released grip on hand line at 20FT and fell to ground.

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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