# NTSB DEN78FI012: Dehavilland DHC-7, N27RM, Denver, CO, December 6, 1977

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: December 6, 1977
- Place: Denver, CO · DENVER, CO
- Location: 39.7392° N, 104.9847° W: Placed by OpenAirDocs: center of Denver, CO, within about 7 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.7392&lon=-104.9847&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report March 21, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 144109
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN78FI012
- Page: https://openairdocs.org/ntsb/DEN78FI012

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
5-0022   77/12/6   DENVER,CO           DEHAVILLAND DHC-7   CR-  0  0  3  INSTRUCTIONAL             AIRLINE TRANSPORT, AGE
        TIME - 1400                    N27RM               PX-  0  0  0  CHECK                     52, 11300 TOTAL HOURS, 17
                                       DAMAGE-MINOR        OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        CLASSIFIED AS INCIDENT
        NAME OF AIRPORT - STAPLETON INTL
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          DENVER,CO                   RETURN                       CHEYENNE,WY
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR RETRACTED                                           TAXI: FROM LANDING
        PROBABLE CAUSE(S)
           PERSONNEL - PRODUCTION-DESIGN-PERSONNEL: POOR/INADEQUATE DESIGN
           AIRFRAME - LANDING GEAR: GEAR LOCKING MECHANISM
        FACTOR(S)
           PERSONNEL - OPERATIONAL SUPERVISORY PERSONNEL: FAILURE TO PROVIDE ADEQ.DIRECTIVES,MANUAL,EQUIPMENT
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER EMERGENCY PROCEDURES
        REMARKS- INSTRUCTIONS FOR MANUAL GEAR EXTENTION INADEQUATE.
```

## Aircraft

- Registration: [N27RM](https://openairdocs.org/deregistered/N27RM-2000-06-08), registration cancelled 2000-06-08, S/N 4 (OpenAirDocs)
- Reported make and model: DEHAVILLAND DHC-7
- Registry model: [Dehavilland DHC-7-102](https://openairdocs.org/model/dehavilland-dhc-7-102) (registry code 2802708) (OpenAirDocs)
- Category: Airplane
- Engines: turbo shaft
- Damage: Minor damage
- Airport: Stapleton Intl

## Other investigations on N27RM (1)

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.

- [NTSB DEN79IA026](https://openairdocs.org/ntsb/DEN79IA026), Mar 3, 1979: Dehavilland DHC-7 (N27RM), Denver, CO, incident, minor damage

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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