# NTSB OAK75DVG11: Semco T, N24412, Napa, CA, August 3, 1974

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 3, 1974
- Place: Napa, CA · NAPA, CA
- Location: 38.2971° N, 122.3010° W: Placed by OpenAirDocs: center of Napa, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.2971&lon=-122.3010&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report September 27, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 134404
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK75DVG11
- Page: https://openairdocs.org/ntsb/OAK75DVG11

## NTSB brief (aircraft 2)

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2526   74/8/3    NAPA,CALIF          SEMCO T             CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, AGE 26,
        TIME - 1100                    N65244              PX-  0  0  1  AIR SHOW/RACING           UNK/NR TOTAL HOURS, 52 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  2                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          NAPA,CALIF                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH AIRCRAFT: BOTH IN FLIGHT                  IN FLIGHT: OTHER
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OTHER AIRCRAFT
           PERSONNEL - MISCELLANEOUS-PERSONNEL: PILOT OF OTHER AIRCRAFT
         SPECIAL DATA
          SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-SMALL US GEN.AV.
          CONTROLLING AGENCY - NO CONTROL                          RADAR CTL/SURVEILLANCE - RADAR SERVICE NOT AVAILABLE
          TRAFFIC ADVISORY ISSUED - NONE                           CONTROL ZONE/AREA - NO
          EVASIVE ACTION TAKEN - NO                                ANTI-COLLISION LIGHTS - NOT INSTALLED
        REMARKS- MASS BALLOON ASCENSION AT FAIRGROUNDS.
```

## NTSB brief (aircraft 1)

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2526   74/8/3    NAPA,CALIF          SEMCO T             CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, AGE 40, 5395
        TIME - 1100                    N24412              PX-  0  0  1  AIR SHOW/RACING           TOTAL HOURS, 20 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  2                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          NAPA,CALIF                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH AIRCRAFT: BOTH IN FLIGHT                  IN FLIGHT: OTHER
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OTHER AIRCRAFT
           PERSONNEL - MISCELLANEOUS-PERSONNEL: PILOT OF OTHER AIRCRAFT
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-SMALL US GEN.AV.
          CONTROLLING AGENCY - NO CONTROL                          RADAR CTL/SURVEILLANCE - RADAR SERVICE NOT AVAILABLE
          TRAFFIC ADVISORY ISSUED - NONE                           CONTROL ZONE/AREA - NO
          EVASIVE ACTION TAKEN - NO                                ANTI-COLLISION LIGHTS - NOT INSTALLED
        REMARKS- HOT AIR BALLOON.
```

## Aircraft 1

- Registration: [N24412](https://openairdocs.org/deregistered/N24412-2024-07-27), registration cancelled 2024-07-27, S/N SEM92 (OpenAirDocs)
- Reported make and model: SEMCO T
- Registry model: [Semco Balloon T](https://openairdocs.org/model/semco-balloon-t) (registry code 8071701) (OpenAirDocs)
- Category: Balloon
- Engines: none
- Damage: Substantial damage

## Aircraft 2

- Registration: [N65244](https://openairdocs.org/deregistered/N65244-2013-04-30), registration cancelled 2013-04-30, S/N SEM120, built 1973 (OpenAirDocs)
- Reported make and model: SEMCO T
- Registry model: [Semco Balloon T](https://openairdocs.org/model/semco-balloon-t) (registry code 8071701) (OpenAirDocs)
- Registry engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000, none) (OpenAirDocs)
- Category: Balloon
- Engines: none
- Damage: Substantial damage

## FAA reports on this event (2)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19740803028192A](https://openairdocs.org/incident/19740803028192A), Aug 3, 1974: Semco T, Napa, CA, Substantial damage. Hot air balloon.
- [Accident 19740803028191A](https://openairdocs.org/incident/19740803028191A), Aug 3, 1974: Semco TC4, Napa, CA. Mass balloon ascension at fairgrounds.

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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