# NTSB DEN77FTM12: Na Rockwell 114, N4735W, Vernal, UT, March 12, 1977

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: March 12, 1977
- Place: Vernal, UT · VERNAL, UT
- Location: 40.4517° N, 109.5381° W: Placed by OpenAirDocs: center of Vernal, UT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.4517&lon=-109.5381&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 2 serious, 1 minor
- Status: Completed, report June 3, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 157504
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN77FTM12
- Page: https://openairdocs.org/ntsb/DEN77FTM12

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0721  77/3/12    VERNAL,UT           NA ROCKWELL 114     CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, AGE 36, 17519
        TIME - 0725                    N4735W              PX-  0  2  0  DEMONSTRATION             TOTAL HOURS, 406 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - VERNAL MUNICIPAL
        DEPARTURE POINT             INTENDED DESTINATION
          VERNAL,UT                   SALT LAKE CITY,UT
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: CLIMB TO CRUISE
           COLLISION WITH GROUND/WATER: CONTROLLED                  LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         FIRE AFTER IMPACT
        REMARKS- ENG BACKFIRE AND MISSING.FUEL CONTROL UNIT DAMAGED BEYOND TEST CONDITION.
```

## Aircraft

- Registration: [N4735W](https://openairdocs.org/deregistered/N4735W-1977-05-25), registration cancelled 1977-05-25, S/N 14065 (OpenAirDocs)
- Reported make and model: NA ROCKWELL 114
- Registry model: [Rockwell International 114](https://openairdocs.org/model/rockwell-international-114) (registry code 7630314) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Vernal Municipal

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19770312005179A](https://openairdocs.org/incident/19770312005179A), Mar 12, 1977: Rkwell 114, Vernal, UT, Destroyed. Eng backfire and missing. Fuel control unit damaged beyond test condition.

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.