# NTSB FTW68F0493: Bell-Carson C-4, N614X, San Antonio, TX, February 25, 1968

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: February 25, 1968
- Place: San Antonio, TX · SAN ANTONIO, TX
- Location: 29.4241° N, 98.4936° W: Placed by OpenAirDocs: center of San Antonio, TX, within about 13 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=29.4241&lon=-98.4936&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report September 20, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 111522
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW68F0493
- Page: https://openairdocs.org/ntsb/FTW68F0493

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2335  68/2/25    SAN ANTONIO,TEX     BELL-CARSON C-4     CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1810                    N614X               PX-  0  0  3  AIR TAXI-PASSG            AGE 36, 2455 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            76 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - SAN ANTONIO INTL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: HOVERING
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           ROTORCRAFT - MISCELLANEOUS UNITS AND ASSEMBLIES: TAIL BOOMS/PYLONS/CONES
           MISCELLANEOUS ACTS,CONDITIONS - CORRODED/CORROSION
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
         FIRE AFTER IMPACT
        REMARKS- STRUCTURAL FAILURE OF TUBING,DUE TO INTERNAL RUST.ACFT A CONVERSION,UNKNOWN TOTAL TIME ON AIRFRAME
```

## Aircraft

- Registration: [N614X](https://openairdocs.org/deregistered/N614X-1994-05-06), registration cancelled 1994-05-06, S/N C5012 (OpenAirDocs)
- Reported make and model: BELL-CARSON C-4
- Registry model: [Bell-Carson 47G-SUPER C-4](https://openairdocs.org/model/bell-carson-47g-super-c-4) (registry code 1181060) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: San Antonio Intl

## Other investigations on N614X (2)

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.

- [NTSB ATL94LA019](https://openairdocs.org/ntsb/ATL94LA019), Nov 16, 1993: Bell-Carson 47G-SUPER C-4 (N614X), Eufaula, AL, substantial damage. Probable cause: THE PILOT'S FAILURE TO MAINTAIN AIRCRAFT CONTROL. A FACTOR WAS THE PILOT'S LIMITED HELICOPTER FLIGHT EXPERIENCE.
- [NTSB FTW68F0609](https://openairdocs.org/ntsb/FTW68F0609), May 5, 1968: Bell-Carson 47G (N614X), San Antonio, TX, 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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