# NTSB DEN78FTF01: Cessna T337, N47789, Calhan, CO, September 23, 1978

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 23, 1978
- Place: Calhan, CO · CALHAN, CO
- Location: 39.0340° N, 104.3002° W: Placed by OpenAirDocs: center of Calhan, CO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.0340&lon=-104.3002&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 30, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 139669
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN78FTF01
- Page: https://openairdocs.org/ntsb/DEN78FTF01

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2755  78/9/23    CALHAN,CO           CESSNA T337         CR-  0  0  1  NONCOMMERCIAL             NO CERTIFICATE, AGE 28,
        TIME - 1130                    N47789              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  1000 TOTAL HOURS, 200 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          CALHAN,CO                   BOULDER,CO
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           WHEELS-UP                                                LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- PILOT HELD NO CERTIFICATES.CLAIMED POWER LOSS ON REAR ENGINE.
```

## Aircraft

- Registration: [N47789](https://openairdocs.org/deregistered/N47789-2012-08-07), registration cancelled 2012-08-07, S/N 337-0992, built 1969 (OpenAirDocs)
- Reported make and model: CESSNA T337
- Registry model: [Cessna T337D](https://openairdocs.org/model/cessna-t337d) (registry code 2075719) (OpenAirDocs)
- Registry engine: [Continental IO-360 series](https://openairdocs.org/engine/continental-io-360-series) (registry code 17025, 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 19780923027749A](https://openairdocs.org/incident/19780923027749A), Sep 23, 1978: Cessna 337G, Calhan, CO, Substantial damage. Pilot held no certificates. Claimed power loss on rear engine.

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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