# NTSB NYC71DHJ10: Semco, N2079, Missing Aircraft (Atlantic Ocean), September 21, 1970

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: September 21, 1970
- Place: Missing Aircraft (Atlantic Ocean) · MISSING AIRCRAFT, AO
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 3 fatal
- Status: Completed, report December 23, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 158471
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC71DHJ10
- Page: https://openairdocs.org/ntsb/NYC71DHJ10

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1469  70/9/21    MISSING AIRCRAFT    SEMCO               CR-  3  0  0  MISCELLANEOUS             CERTIFICATE UNKNOWN, AGE
        TIME - 1800                    N2079               PX-  0  0  0  EXPERIMENTATION           UNK/NR, UNK/NR TOTAL
                                       DAMAGE-DESTROYED    OT-  0  0  0                            HOURS, UNK/NR IN TYPE,
                                                                                                   UNK/NR INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          EAST HAMPTON,NY             FRANCE
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           DITCHING                                                 LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           MISCELLANEOUS - UNDETERMINED
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON WATER
        REMARKS- EXPERIMENTAL CLASS BALLOON ATMTNG TRANSATLANTIC RCRD.PLT RADIOED WAS DITCHING IN N ATLANTIC.
```

## Aircraft

- Registration: [N2079](https://openairdocs.org/deregistered/N2079-1972-01-14), registration cancelled 1972-01-14, S/N SEM-22, built 1969 (OpenAirDocs)
- Reported make and model: SEMCO
- Registry model: [Semco Balloon GAS ATL-1](https://openairdocs.org/model/semco-balloon-gas-atl-1) (registry code 8071002) (OpenAirDocs)
- Category: Balloon
- Engines: none
- Damage: Destroyed

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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