# NTSB MKC72FCD63: Bell 47G-2, N976B, Fremont, IA, March 20, 1972

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: March 20, 1972
- Place: Fremont, IA · FREMONT, IA
- Location: 41.2125° N, 92.4337° W: Placed by OpenAirDocs: center of Fremont, IA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.2125&lon=-92.4337&mi=10
- Phase of flight: [Standing](https://openairdocs.org/ntsb-phases/150) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 1 uninjured
- Status: Completed, report October 24, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 165872
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC72FCD63
- Page: https://openairdocs.org/ntsb/MKC72FCD63

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0475  72/3/20    FREMONT,IOWA        BELL 47G-2          CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 34, 497
        TIME - 0605                    N976B               PX-  0  0  1  BUSINESS                  TOTAL HOURS, 145 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - OSKALOOSA
        DEPARTURE POINT             INTENDED DESTINATION
          FREMONT,IOWA                LINCOLN,NEBR
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: MAIN ROTOR                      STATIC: ENGINE RUNUP
        PROBABLE CAUSE(S)
           ROTORCRAFT - ROTOR ASSEMBLIES: MAIN ROTOR BLADES
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
        REMARKS- MAIN ROTOR BLADE GRIP FAILED. BLADE SEPARATED.
```

## Aircraft

- Registration: [N976B](https://openairdocs.org/deregistered/N976B-1991-04-23), registration cancelled 1991-04-23, S/N 1378 (OpenAirDocs)
- Reported make and model: BELL 47G-2
- Registry model: [Bell 47G-2](https://openairdocs.org/model/bell-47g-2) (registry code 1181008) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Oskaloosa

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.