# NTSB CHI69F0003: Hughes 269B, N9479F, Dayton, OH, May 21, 1968

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: May 21, 1968
- Place: Dayton, OH · DAYTON, OH
- Location: 39.7589° N, 84.1916° W: Placed by OpenAirDocs: center of Dayton, OH, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.7589&lon=-84.1916&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report February 18, 1969
- Report: Brief approved by the director
- NTSB case key (mKey): 109626
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI69F0003
- Page: https://openairdocs.org/ntsb/CHI69F0003

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4427  68/5/21    DAYTON,OHIO         HUGHES 269B         CR-  0  1  0  NONCOMMERCIAL             COMMERCIAL, AGE 52, 4314
        TIME - 1330                    N9479F              PX-  0  0  0  BUSINESS                  TOTAL HOURS, 78 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - DAYTON HELPORT
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      TAKEOFF: INITIAL CLIMB
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           ROTORCRAFT - ROTOR ASSEMBLIES: TAIL ROTOR BLADES
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  DIRECTIONAL CONTROL PROBLEM
        REMARKS- FIBERGLASS AIRFOIL SECTION BECAME UNBONDED,SEPARATED FROM BLADE SPAR.
```

## Aircraft

- Registration: [N9479F](https://openairdocs.org/deregistered/N9479F-1971-01-04), registration cancelled 1971-01-04, S/N 106-0258 (OpenAirDocs)
- Reported make and model: HUGHES 269B
- Registry model: [Hughes 269B](https://openairdocs.org/model/hughes-269b) (registry code 4470502) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed
- Airport: Dayton Helport

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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