# NTSB DEN73FQA46: Bell 47G-3B, N4727R, Cuba, NM, June 13, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 13, 1973
- Place: Cuba, NM · CUBA, NM
- Location: 36.0146° N, 106.9680° W: Placed by OpenAirDocs: center of Cuba, NM, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.0146&lon=-106.9680&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report October 16, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 189906
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN73FQA46
- Page: https://openairdocs.org/ntsb/DEN73FQA46

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2440  73/6/13  NR.CUBA,N MEX         BELL 47G-3B         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE UNK/NR,
        TIME - 1400                    N4727R              PX-  0  0  2  MAPPING/PHOTO             1971 TOTAL HOURS, 61 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         CUBA,N MEX                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - EXHAUST SYSTEM: EXTERNAL SUPERCHARGER
           MISCELLANEOUS ACTS,CONDITIONS - BINDING
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE INSPECTION OF AIRCRAFT (MAINTENANCE PERSONNEL)
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- WASTE GATE ACTUATOR ARM BINDING.PLT ATMTD PARTIAL PWR LNDG.
```

## Aircraft

- Registration: [N4727R](https://openairdocs.org/deregistered/N4727R-1977-01-27), registration cancelled 1977-01-27, S/N 6715, built 1968 (OpenAirDocs)
- Reported make and model: BELL 47G-3B
- Registry model: [Bell 47G-3B-2](https://openairdocs.org/model/bell-47g-3b-2) (registry code 1181029) (OpenAirDocs)
- Registry engine: [Lycoming TVO-435-GIA](https://openairdocs.org/engine/lycoming-tvo-435-gia) (registry code 41526, turbo-prop) (OpenAirDocs)
- Category: Helicopter
- 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 19730613019959A](https://openairdocs.org/incident/19730613019959A), Jun 13, 1973: Bell 47G3B2, Cuba, NM, Substantial damage. Waste gate actuator arm binding. Plt atmtd partial pwr lndg.

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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