# NTSB DEN81FTE20: Cessna 340, N4104G, Grandby, CO, January 29, 1981

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: January 29, 1981
- Place: Grandby, CO · GRANDBY, CO
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report February 23, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 127247
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN81FTE20
- Page: https://openairdocs.org/ntsb/DEN81FTE20

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0121  81/1/29    GRANDBY,CO          CESSNA 340          CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1245                    N4104G              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  AGE 41, 1111 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            230 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - GRANBY
        DEPARTURE POINT             INTENDED DESTINATION
          BOULDER,CO                  GRANDBY,CO
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           OVERSHOOT                                                LANDING: LEVEL OFF/TOUCHDOWN
           COLLIDED WITH: FENCE,FENCEPOSTS                          LANDING: GO-AROUND
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED DISTANCE AND SPEED
        FACTOR(S)
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: SNOW ON RUNWAY
           MISCELLANEOUS ACTS,CONDITIONS - WHITEOUT
           MISCELLANEOUS ACTS,CONDITIONS - RAN OFF END OF RUNWAY
```

## Aircraft

- Registration: N4104G (not matched to a registry record)
- Reported make and model: CESSNA 340
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Granby

## 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 19810129002189A](https://openairdocs.org/incident/19810129002189A), Jan 29, 1981: Cessna 340A, Granby, CO, Substantial damage. Unable to stop on snow-covered runway. Began go-around, ran off end of runway. Failed to raise drag flaps.

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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