# NTSB DEN75DQA11: Bell 212, N83033, Red Hill, NM, August 20, 1974

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 20, 1974
- Place: Red Hill, NM · RED HILL, NM
- Location: 34.2187° N, 108.8723° W: Placed by OpenAirDocs: center of Red Hill, NM, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.2187&lon=-108.8723&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 8 uninjured
- Status: Completed, report November 20, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 138765
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN75DQA11
- Page: https://openairdocs.org/ntsb/DEN75DQA11

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3329  74/8/20  NR.RED HILL,N MEX     BELL 212            CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 28, 4267
        TIME - 0930                    N83033              PX-  0  0  7  CONSTRUCTION              TOTAL HOURS, 440 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          SPRINGERVILLE,ARIZ         RED HILL,N MEX
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      LANDING: POWER-ON LANDING
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: TAIL ROTOR DRIVE SHAFT ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - DISCONNECTED
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY INSTALLED
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           TERRAIN - ROUGH/UNEVEN
           TERRAIN - HIGH OBSTRUCTIONS
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- T/R DRIVE SHAFT COUPLING FAILED.
```

## Aircraft

- Registration: [N83033](https://openairdocs.org/deregistered/N83033-1999-09-01), registration cancelled 1999-09-01, S/N 30590 (OpenAirDocs)
- Reported make and model: BELL 212
- Registry model: [Bell 212](https://openairdocs.org/model/bell-212) (registry code 1181420) (OpenAirDocs)
- Category: Helicopter
- Engines: turbo shaft
- 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 19740820033989A](https://openairdocs.org/incident/19740820033989A), Aug 20, 1974: Bell 212, Red Hill, NM, Substantial damage. T/r drive shaft coupling failed.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.