# NTSB DEN81FTE12: Cessna 172, N4801G, Boulder, CO, December 14, 1980

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: December 14, 1980
- Place: Boulder, CO · BOULDER, CO
- Location: 40.0244° N, 105.2513° W: Placed by OpenAirDocs: center of Boulder, CO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.0244&lon=-105.2513&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report January 20, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 128499
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN81FTE12
- Page: https://openairdocs.org/ntsb/DEN81FTE12

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3149  80/12/14   BOULDER,CO          CESSNA 172          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 21, 123
        TIME - 1615                    N4801G              PX-  0  0  2  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 62 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - BOULDER
        DEPARTURE POINT             INTENDED DESTINATION
          ENGLEWOOD,CO                BOULDER,CO
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 TAXI: TO TAKEOFF
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: BRAKING SYSTEM (NORMAL SYSTEM)
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        REMARKS- L BRAKE MASTER CYLINDER FAILED.ACFT VEERED RGT & WENT OVR EMBANKMENT.
```

## Aircraft

- Registration: [N4801G](https://openairdocs.org/aircraft/N4801G), registered now, S/N 17273349 (OpenAirDocs)
- Reported make and model: CESSNA 172
- Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (registry code 2072434) (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
- Airport: Boulder

## 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 19801214071489A](https://openairdocs.org/incident/19801214071489A), Dec 14, 1980: Cessna 172N, Boulder, CO, Substantial damage. Brake failed at end of taxiway. Veered off taxiway and down an embankment.

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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