# NTSB DEN69A0047: Lockheed 12A, N399X, Casper, WY, May 9, 1969

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: May 9, 1969
- Place: Casper, WY · CASPER, WY
- Location: 42.8421° N, 106.3213° W: Placed by OpenAirDocs: center of Casper, WY, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.8421&lon=-106.3213&mi=10
- Phase of flight: [Uncontrolled descent](https://openairdocs.org/ntsb-phases/650) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 6 serious, 2 minor
- Status: Completed, report June 18, 1969
- Report: Brief approved by the director
- NTSB case key (mKey): 186617
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN69A0047
- Page: https://openairdocs.org/ntsb/DEN69A0047

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1052   69/5/9    CASPER,WYO          LOCKHEED 12A        CR-  0  1  0  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 0625                    N399X               PX-  0  5  2  AIR TAXI-PASSG            AGE 34, 2619 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            87 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - CASPER
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
         FIRE AFTER IMPACT
        REMARKS- TOOK OFF WITH ELEVATOR SECURED BY LOCKING BATTEN
```

## Aircraft

- Registration: [N399X](https://openairdocs.org/deregistered/N399X-1970-04-17), registration cancelled 1970-04-17, S/N 1223, built 1937 (OpenAirDocs)
- Reported make and model: LOCKHEED 12A
- Registry model: [Lockheed 12A](https://openairdocs.org/model/lockheed-12a) (registry code 5261402) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Casper

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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