# NTSB OAK75DVD21: Hughes 369, N9191F, Pinole, CA, October 13, 1974

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: October 13, 1974
- Place: Pinole, CA · PINOLE, CA
- Location: 38.0086° N, 122.3133° W: Placed by OpenAirDocs: center of Pinole, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.0086&lon=-122.3133&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report April 7, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 146452
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK75DVD21
- Page: https://openairdocs.org/ntsb/OAK75DVD21

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4291  74/10/13   PINOLE,CALIF        HUGHES 369          CR-  0  0  2  MISCELLANEOUS             COMMERCIAL, AGE 32, 502
        TIME - 1330                    N9191F              PX-  0  0  0  POLICE PATROL             TOTAL HOURS, ALL IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          OAKLAND,CALIF               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            LANDING: OTHER
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SIMULATED CONDITIONS
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- ENG FAILED TO RESPOND TO THROT                  COVERY FRM SIMULATED ENG-OUT LDG.
```

## Aircraft

- Registration: [N9191F](https://openairdocs.org/deregistered/N9191F-1989-07-17), registration cancelled 1989-07-17, S/N 540595S (OpenAirDocs)
- Reported make and model: HUGHES 369
- Registry model: [Hughes 369HS](https://openairdocs.org/model/hughes-369hs) (registry code 4470728) (OpenAirDocs)
- Category: Helicopter
- Engines: turbo shaft
- 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 19741013043199A](https://openairdocs.org/incident/19741013043199A), Oct 13, 1974: Hughes 369HS, Pinole, CA, Substantial damage. Eng failed to respond to throt covery frm simulated eng-out ldg.

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.