# NTSB FTW68A0104: Lockheed 12A, N4105B, Sweetwater, TX, June 7, 1968

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 7, 1968
- Place: Sweetwater, TX · SWEETWATER, TX
- Location: 32.4694° N, 100.4087° W: Placed by OpenAirDocs: center of Sweetwater, TX, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.4694&lon=-100.4087&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report July 22, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 115033
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW68A0104
- Page: https://openairdocs.org/ntsb/FTW68A0104

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1695   68/6/7    SWEETWATER,TEX      LOCKHEED 12A        CR-  0  0  2  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 0655                    N4105B              PX-  0  0  1  COMMUTER AIR CARRIER      AGE 23, 1278 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0  AIR TAXI-PASSG S-D        40 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - SWEETWATER
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR COLLAPSED                                           TAXI: FROM LANDING
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: NORMAL RETRACTION/EXTENSION ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
           MISCELLANEOUS ACTS,CONDITIONS - BENT
        REMARKS- ACTUATING SCREW BENT FROM OVERLOAD ON RT GR,RESULTING IN TENSION FAILURE OF RETAINING STUDS.
```

## Aircraft

- Registration: N4105B (not matched to a registry record)
- Reported make and model: LOCKHEED 12A
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Sweetwater

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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