# NTSB DCA79AA010: Dehavilland DHC-6, N24RM, Cheyenne, WY, February 27, 1979

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: February 27, 1979
- Place: Cheyenne, WY · CHEYENNE, WY
- Location: 41.1400° N, 104.8202° W: Placed by OpenAirDocs: center of Cheyenne, WY, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.1400&lon=-104.8202&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor, 14 uninjured
- Status: Completed, report November 28, 1979
- NTSB case key (mKey): 137245
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA79AA010
- Board report AAR7910 (PDF): https://www.ntsb.gov/investigations/AccidentReports/Reports/AAR7910.pdf
- Page: https://openairdocs.org/ntsb/DCA79AA010

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2477  79/2/27    CHEYENNE,WY         DEHAVILLAND DHC-6   CR-  0  0  2  COMMERCIAL                AIRLINE TRANSPORT, AGE
        TIME - 0807                    N24RM               PX-  0  0 14  COMMUTER AIR CARRIER      26, 3742 TOTAL HOURS, 794
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0  AIR TAXI-PASSG S-D        IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - CHEYENNE MUNI
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          DENVER,CO                   RETURN                       CHEYENNE,WY
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           COLLISION WITH GROUND/WATER: CONTROLLED                  TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
           POWERPLANT - TURBINE ASSEMBLY: BLADE,TURBINE WHEEL
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           MISCELLANEOUS ACTS,CONDITIONS - OVERHEATED
           MISCELLANEOUS ACTS,CONDITIONS - PREVIOUS DAMAGE
           PILOT IN COMMAND - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC.
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER EMERGENCY PROCEDURES
        FACTOR(S)
           POWERPLANT - PROPELLER SYSTEM: CONTROL UNIT,PCV
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        REMARKS- CREWS ERRONEOUS DETERMN ACFT NOT CAPABLE OF SE FLT.ERRONEOUS ASSESSMENT OF ENG DAMAGE.
```

## Aircraft

- Registration: N24RM (not matched to a registry record)
- Reported make and model: DEHAVILLAND DHC-6
- Category: Airplane
- Engines: turbo prop
- Damage: Substantial damage
- Airport: Cheyenne Muni

## 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 19790227030759A](https://openairdocs.org/incident/19790227030759A), Feb 27, 1979: Dhav DHC6300, Cheyenne, WY, Substantial damage. Engine failed on takeoff. Crew elected to make forced lndg rather than continue flt. Acft capable of flight.

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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