# NTSB OAK76DVG32: Grumman G-44, N47C, Collinsville, CA, November 10, 1975

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: November 10, 1975
- Place: Collinsville, CA · COLLINSVILLE, CA
- Location: 38.0769° N, 121.8500° W: Placed by OpenAirDocs: center of Collinsville, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.0769&lon=-121.8500&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 2 uninjured
- Status: Completed, report January 26, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 151685
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK76DVG32
- Page: https://openairdocs.org/ntsb/OAK76DVG32

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3801  75/11/10   COLLINSVILLE,CA     GRUMMAN G-44        CR-  0  0  2  INSTRUCTIONAL             ATP,FLIGHT INSTR., AGE
        TIME - 1630                    N47C                PX-  0  0  1  DUAL                      60, 25176 TOTAL HOURS, 5
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          CONCORD,CA                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           NOSE OVER/DOWN                                           TAKEOFF: RUN
        PROBABLE CAUSE(S)
           DUAL STUDENT - IMPROPER OPERATION OF FLIGHT CONTROLS
           PILOT IN COMMAND - FAILED TO ABORT TAKEOFF
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
        REMARKS- AIRCRAFT PORPOISED & SANK.
```

## Aircraft

- Registration: [N47C](https://openairdocs.org/aircraft/N47C), registered now, S/N 1371 (OpenAirDocs)
- Reported make and model: GRUMMAN G-44
- Registry model: [Grumman G-44](https://openairdocs.org/model/grumman-g-44) (registry code 3951502) (OpenAirDocs)
- Registry engine: [Lycoming R680E series](https://openairdocs.org/engine/lycoming-r680e-series) (registry code 41545, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial 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 19751110039689A](https://openairdocs.org/incident/19751110039689A), Nov 10, 1975: Gruman G44, Collinsville, CA, Substantial damage. Aircraft porpoised & sank.

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.