# NTSB FTW74DRG39: Cessna 172, N84148, Austin, TX, December 4, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: December 4, 1973
- Place: Austin, TX · AUSTIN, TX
- Location: 30.2672° N, 97.7431° W: Placed by OpenAirDocs: center of Austin, TX, within about 10 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=30.2672&lon=-97.7431&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report January 28, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 187555
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW74DRG39
- Page: https://openairdocs.org/ntsb/FTW74DRG39

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3685   73/12/4 NR.AUSTIN,TEX         CESSNA 172          CR-  0  0  1  INSTRUCTIONAL             STUDENT, AGE 31, 95 TOTAL
        TIME - 1115                    N84148              PX-  0  0  0  TRAINING                  HOURS, 60 IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          SAN ANTONIO,TEX             MARBLE FALLS,TEX            AUSTIN,TEX
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: TREES                                     LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: VALVE ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           TERRAIN - OTHER
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- LNDD ON NARROW ROAD BORDER BY TREES.NR 3 EXH VALVE FAILED.
```

## Aircraft

- Registration: [N84148](https://openairdocs.org/deregistered/N84148-2012-10-22), registration cancelled 2012-10-22, S/N 17258356, built 1969 (OpenAirDocs)
- Reported make and model: CESSNA 172
- Registry model: [Cessna 172K](https://openairdocs.org/model/cessna-172k) (registry code 2072430) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## 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 19731204037709A](https://openairdocs.org/incident/19731204037709A), Dec 4, 1973: Cessna 172K, Austin, TX, Substantial damage. Lndd on narrow road border by trees. Nr 3 exh valve failed.

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.