# NTSB DEN73AD039: Bell 47G3B1, N73972, Salt Lake City, UT, February 21, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: February 21, 1973
- Place: Salt Lake City, UT · SALT LAKE CITY, UT
- Location: 40.7608° N, 111.8910° W: Placed by OpenAirDocs: center of Salt Lake City, UT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.7608&lon=-111.8910&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report April 4, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 169950
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN73AD039
- Page: https://openairdocs.org/ntsb/DEN73AD039

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0340  73/2/21    SALT LAKE CITY,UT   BELL 47G3B1         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 37, 5790
        TIME - 1000                    N73972              PX-  0  0  3  AIR TAXI-PASSG            TOTAL HOURS, 300 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          PARK CITY,UTAH              SNOWBIRD RESORT
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            LANDING: POWER-ON LANDING
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           TERRAIN - ROUGH/UNEVEN
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - DOWNWIND
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        REMARKS- FORCED TO LAND DOWN WIND AND DOWN SLOPE.BROKEN TIMING GEAR.
```

## Aircraft

- Registration: [N73972](https://openairdocs.org/deregistered/N73972-2013-05-07), registration cancelled 2013-05-07, S/N 2885, built 1966 (OpenAirDocs)
- Reported make and model: BELL 47G3B1
- Registry model: [Bell 47G-3B-1](https://openairdocs.org/model/bell-47g-3b-1) (registry code 1181028) (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 19730221003109A](https://openairdocs.org/incident/19730221003109A), Feb 21, 1973: Bell 47G3B1, Salt Lake City, UT, Substantial damage. Forced to land down wind and down slope. Broken timing gear.

## Other investigations on N73972 (4)

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 FTW80FA090](https://openairdocs.org/ntsb/FTW80FA090), Jul 10, 1980: Bell 47G3B1 (N73972), Mescalero, NM, destroyed
- [NTSB DEN75AD009](https://openairdocs.org/ntsb/DEN75AD009), Sep 5, 1974: Bell 47G3B1 (N73972), Ogden, UT, destroyed, 1 fatal
- [NTSB DEN72AD011](https://openairdocs.org/ntsb/DEN72AD011), Sep 13, 1971: Bell 47G3B1 (N73972), Sandy, UT, substantial damage
- [NTSB SEA69D0057](https://openairdocs.org/ntsb/SEA69D0057), Aug 11, 1968: Bell 47G3B1 (N73972), Garden Valley, ID, destroyed

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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