# NTSB LAX78FUA07: Aeronca 7AC, N81929, Sunset Beach, CA, December 1, 1977

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: December 1, 1977
- Place: Sunset Beach, CA · SUNSET BEACH, CA
- Location: 33.7164° N, 118.0690° W: Placed by OpenAirDocs: center of Sunset Beach, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.7164&lon=-118.0690&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 1 uninjured
- Status: Completed, report January 8, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 158670
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX78FUA07
- Page: https://openairdocs.org/ntsb/LAX78FUA07

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3674   77/12/1   SUNSET BEACH CA     AERONCA 7AC         CR-  0  1  1  NONCOMMERCIAL             AIRLINE TRANSPORT, AGE
        TIME - 1000                    N81929              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  48, 19000 TOTAL HOURS, 52
                                       DAMAGE-DESTROYED    OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          HUNTINGTON BEACH,CA         LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: LOW PASS
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
           COPILOT - MISUNDERSTANDING OF ORDERS OR INSTRUCTIONS
           MISCELLANEOUS ACTS,CONDITIONS - CREW COORDINATION-POOR
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
        REMARKS- BOTH PLTS THOUGHT OTHER PLT WAS FLYING ACFT. SANK IN OCEAN.
```

## Aircraft

- Registration: [N81929](https://openairdocs.org/deregistered/N81929-1984-07-18), registration cancelled 1984-07-18, S/N 7AC-554 (OpenAirDocs)
- Reported make and model: AERONCA 7AC
- Registry model: [Aeronca 7AC](https://openairdocs.org/model/aeronca-7ac) (registry code 2110102) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

## 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 19771201037489A](https://openairdocs.org/incident/19771201037489A), Dec 1, 1977: Blanca 7AC, Sunset Beach Ca, CA, Substantial damage. Both plts thought other plt was flying acft. Sank in ocean.

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.