# NTSB FTW70FPJ26: Aero Comdr 690, N9202N, Bethany, OK, June 26, 1970

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: June 26, 1970
- Place: Bethany, OK · BETHANY, OK
- Location: 35.5072° N, 97.6417° W: Placed by OpenAirDocs: center of Bethany, OK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=35.5072&lon=-97.6417&mi=10
- Phase of flight: [Emergency descent](https://openairdocs.org/ntsb-phases/600) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 2 minor
- Status: Completed, report September 10, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 121419
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW70FPJ26
- Page: https://openairdocs.org/ntsb/FTW70FPJ26

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4310  70/6/26    BETHANY,OKLA        AERO COMDR 690      CR-  0  1  2  MISCELLANEOUS             AIRLINE TRANSPORT, AGE
        TIME - 1527                    N9202N              PX-  0  0  0  TEST                      39, 9731 TOTAL HOURS, 150
                                       DAMAGE-DESTROYED    OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - WILEY POST
        DEPARTURE POINT             INTENDED DESTINATION
          NORMAN,OKLA                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: EMERGENCY DESCENT
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           SYSTEMS - FLIGHT CONTROL SYSTEMS: RUDDER AND RUDDER TAB CONTROL SYSTEM
           MISCELLANEOUS ACTS,CONDITIONS - FLUTTER
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
         FIRE AFTER IMPACT
        REMARKS- NEW DESIGN RUDDER,NON-PROD DESIGN TAB,ARM.ENCNTRD SUSTAINED FLUTTER AT 243K.EMPENNAGE SEPD.
```

## Aircraft

- Registration: [N9202N](https://openairdocs.org/deregistered/N9202N-1970-07-02), registration cancelled 1970-07-02, S/N 11002 (OpenAirDocs)
- Reported make and model: AERO COMDR 690
- Registry model: [Aero Commander 690](https://openairdocs.org/model/aero-commander-690) (registry code 0141720) (OpenAirDocs)
- Category: Airplane
- Engines: turbo prop
- Damage: Destroyed
- Airport: Wiley Post

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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