# NTSB DEN73FTM01: Bell 47G3B1, N7927S, Ogden, UT, July 11, 1972

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: July 11, 1972
- Place: Ogden, UT · OGDEN, UT
- Location: 41.2284° N, 111.9681° W: Placed by OpenAirDocs: center of Ogden, UT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.2284&lon=-111.9681&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal, 2 minor
- Status: Completed, report November 9, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 166693
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN73FTM01
- Page: https://openairdocs.org/ntsb/DEN73FTM01

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0644  72/7/11  NR.OGDEN,UT           BELL 47G3B1         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 28, 2180
        TIME - 1300                    N7927S              PX-  1  0  1  OTHER                     TOTAL HOURS, 525 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          GUNNISON ISLAND,UT          LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: MUSH                                              TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
        FACTOR(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           WEATHER - HIGH DENSITY ALTITUDE
           MISCELLANEOUS ACTS,CONDITIONS - DOWNWIND
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      86
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- ROTOR RPM DECAYED,SETTLED INTO LK.DNSTY ALT 6800 FT.WIND REPTD BY OBS AS GUSTY. CATCHING PELICANS.
```

## Aircraft

- Registration: [N7927S](https://openairdocs.org/deregistered/N7927S-1973-06-25), registration cancelled 1973-06-25, S/N 6597 (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)
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed

## Other investigations on N7927S (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 DEN70F0019](https://openairdocs.org/ntsb/DEN70F0019), May 11, 1969: Bell 47G3B1 (N7927S), Idaho Spring, CO, 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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