# NTSB UNK64X3677: Grumman TBM-3E, N7027C, Casper, WY, August 29, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 29, 1964
- 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: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report December 29, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 182653
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X3677
- Page: https://openairdocs.org/ntsb/UNK64X3677

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0638  64/8/29    CASPER WYO          GRUMMAN TBM-3E      CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 43, 4000
        TIME - 0720                    N7027C              PX-  0  0  0  FIRE CONTROL              TOTAL HOURS, 300 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL                                                    IN FLIGHT: SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
        FACTOR(S)
           WEATHER - TURBULENCE IN FLIGHT,CLEAR AIR
           WEATHER - DOWNDRAFT,UPDRAFTS
        WEATHER BRIEFING - UNKNOWN/NOT REPORTED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              OBSTRUCTIONS TO VISION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        TEMPERATURE-F                                            WIND VELOCITY-KNOTS
           46                                                       30
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
         FIRE AFTER IMPACT
        REMARKS- WIND 20 KNOTS GUSTING TO 28 KNOTS
```

## Aircraft

- Registration: [N7027C](https://openairdocs.org/deregistered/N7027C-1965-11-02), registration cancelled 1965-11-02, S/N 53915 (OpenAirDocs)
- Reported make and model: GRUMMAN TBM-3E
- Registry model: [Grumman TBM-3E](https://openairdocs.org/model/grumman-tbm-3e) (registry code 3950310) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.