# NTSB MKC75FCD37: Brantly 305, N16616, Swisher, IA, March 2, 1975

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: March 2, 1975
- Place: Swisher, IA · SWISHER, IA
- Location: 41.8452° N, 91.6937° W: Placed by OpenAirDocs: center of Swisher, IA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.8452&lon=-91.6937&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor, 2 uninjured
- Status: Completed, report April 7, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 147900
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC75FCD37
- Page: https://openairdocs.org/ntsb/MKC75FCD37

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0415   75/3/2    SWISHER,IA          BRANTLY 305         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 25, 139
        TIME - 1415                    N16616              PX-  0  0  3  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 8 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - FROZEN FARM FIELD
        DEPARTURE POINT             INTENDED DESTINATION
          SWISHER,IA                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ROLL OVER                                                LANDING: POWER-ON LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
        FACTOR(S)
           PILOT IN COMMAND - ATTEMPTED OPERATION BEYOND EXPERIENCE/ABILITY LEVEL
           WEATHER - UNFAVORABLE WIND CONDITIONS
        WEATHER BRIEFING - UNKNOWN/NOT REPORTED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        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                  RELATIVE BEARING OF WIND
          NONE                                                     HEAD WIND 338-022 DEGREES
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          320                                                       18
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- DRG APCH TO HOVER PLT UN CTL TURNING ACFT.
```

## Aircraft

- Registration: [N16616](https://openairdocs.org/deregistered/N16616-2013-03-11), registration cancelled 2013-03-11, S/N 1005, built 1967 (OpenAirDocs)
- Reported make and model: BRANTLY 305
- Registry model: [Brantly 305](https://openairdocs.org/model/brantly-305) (registry code 1440602) (OpenAirDocs)
- Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Frozen Farm Field

## 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 19750302004239A](https://openairdocs.org/incident/19750302004239A), Mar 2, 1975: Hynes 305BRNTLY, Swisher, IA, Substantial damage. Drg apch to hover plt un ctl turning acft.

## Other investigations on N16616 (2)

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 SEA83LA011](https://openairdocs.org/ntsb/SEA83LA011), Oct 23, 1982: Brantly 305 (N16616), Hillsboro, OR, substantial damage
- [NTSB CHI77DEE55](https://openairdocs.org/ntsb/CHI77DEE55), Aug 17, 1977: Brantly 305 (N16616), Wheeling, IL, substantial damage

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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