# NTSB CHI71FEG25: Hughes 269C, N9633F, Kettering, OH, April 30, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 30, 1971
- Place: Kettering, OH · KETTERING, OH
- Location: 39.6960° N, 84.1504° W: Placed by OpenAirDocs: center of Kettering, OH, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.6960&lon=-84.1504&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report January 3, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 160874
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI71FEG25
- Page: https://openairdocs.org/ntsb/CHI71FEG25

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1393  71/4/30    KETTERING,OHIO      HUGHES 269C         CR-  0  0  1  MISCELLANEOUS             PRIVATE, AGE 32, 111
        TIME - 2250                    N9633F              PX-  0  0  1  POLICE PATROL             TOTAL HOURS, ALL IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          KETTERING,OHIO              LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: OTHER
           TERRAIN - OTHER
        REMARKS- SEIZURE FAILURE OF AFT IDLER/CLUTCH PULLEY BEARING P/N 269A5050-62.FULL NGT AUTO ONTO CITY STREET.
```

## Aircraft

- Registration: [N9633F](https://openairdocs.org/deregistered/N9633F-1998-08-25), registration cancelled 1998-08-25, S/N 1000050 (OpenAirDocs)
- Reported make and model: HUGHES 269C
- Registry model: [Hughes 269C](https://openairdocs.org/model/hughes-269c) (registry code 4470504) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

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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