# NTSB FTW69F0199: Bell 47G-4A, N1313X, Portland, TX, August 30, 1968

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 30, 1968
- Place: Portland, TX · PORTLAND, TX
- Location: 27.8890° N, 97.3316° W: Placed by OpenAirDocs: center of Portland, TX, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=27.8890&lon=-97.3316&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 30, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 109062
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW69F0199
- Page: https://openairdocs.org/ntsb/FTW69F0199

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3015  68/8/30    PORTLAND,TEX        BELL 47G-4A         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 31, 2173
        TIME - 0615                    N1313X              PX-  0  0  0  CORP/EXEC                 TOTAL HOURS, 278 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: POWER-ON LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING OFF AIRPORT
                                  PROP/ENGINE VIBRATION
        REMARKS- LDG DUE TO ONE-TO-ONE VIBRATION.CAUSE FOR VIBRATION UNDETERMINED.
```

## Aircraft

- Registration: [N1313X](https://openairdocs.org/aircraft/N1313X), registered now, S/N 4223 (OpenAirDocs)
- Reported make and model: BELL 47G-4A
- Registry model: [Bellanca 14-19-3](https://openairdocs.org/model/bellanca-14-19-3) (registry code 3080106) (OpenAirDocs)
- Registry engine: [Continental IO-470 series](https://openairdocs.org/engine/continental-io-470-series) (registry code 17044, reciprocating) (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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