# NTSB FTW80FRA09: Beech F35, N4270B, Silsbee, TX, November 3, 1979

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: November 3, 1979
- Place: Silsbee, TX · SILSBEE, TX
- Location: 30.3455° N, 94.1768° W: Placed by OpenAirDocs: center of Silsbee, TX, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=30.3455&lon=-94.1768&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 4 serious, 1 minor
- Status: Completed, report December 10, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 133443
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW80FRA09
- Page: https://openairdocs.org/ntsb/FTW80FRA09

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2619   79/11/3   SILSBEE,TX          BEECH F35           CR-  0  1  0  NONCOMMERCIAL             PRIVATE, AGE 46, 431
        TIME - 1900                    N4270B              PX-  0  3  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 48 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - HAWTHORNE
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          KENNETT,MO                  HOUSTON,TX                   LUFKIN,TX
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: TREES                                     LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: VALVE ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           MISCELLANEOUS ACTS,CONDITIONS - OIL EXHAUSTION-ENGINE LUBRICATION SYSTEM
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- EXHAUST VALVE GUIDE,PN 631496,FAILED.
```

## Aircraft

- Registration: [N4270B](https://openairdocs.org/deregistered/N4270B-1981-05-06), registration cancelled 1981-05-06, S/N D-4337 (OpenAirDocs)
- Reported make and model: BEECH F35
- Registry model: [Beech F35](https://openairdocs.org/model/beech-f35) (registry code 1151514) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Hawthorne

## 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 19791103030699A](https://openairdocs.org/incident/19791103030699A), Nov 3, 1979: Beech F35, Silsbee, TX, Destroyed. Experienced engine failure at night. Found broken cylinder exhaust valve.

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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