# NTSB CHI75FEM47: Brantly B-2, N5920X, Ionia, MI, June 15, 1975

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: June 15, 1975
- Place: Ionia, MI · IONIA, MI
- Location: 42.9768° N, 85.0746° W: Placed by OpenAirDocs: center of Ionia, MI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.9768&lon=-85.0746&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report October 14, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 149083
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI75FEM47
- Page: https://openairdocs.org/ntsb/CHI75FEM47

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2682  75/6/15    IONIA,MI            BRANTLY B-2         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1600                    N5920X              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  AGE 49, 3200 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            3 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - IONIA COUNTY
        DEPARTURE POINT             INTENDED DESTINATION
          GREENVILLE,MI               IONIA,MI
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: POWER-ON LANDING
           ROLL OVER                                                LANDING: POWER-ON LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
           PILOT IN COMMAND - LACK OF FAMILIARITY WITH AIRCRAFT
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
           PILOT IN COMMAND - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC.
        REMARKS- ALLOWED RPM TO DETERIORATE UN MAINTAIN DIR CTL DESPITE FULL L PEDAL.
```

## Aircraft

- Registration: [N5920X](https://openairdocs.org/deregistered/N5920X-2013-02-01), registration cancelled 2013-02-01, S/N 56, built 1960 (OpenAirDocs)
- Reported make and model: BRANTLY B-2
- Registry model: [Brantly B-2](https://openairdocs.org/model/brantly-b-2) (registry code 1440502) (OpenAirDocs)
- Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Ionia County

## 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 19750615021449A](https://openairdocs.org/incident/19750615021449A), Jun 15, 1975: Hynes B2, Ionia, MI, Substantial damage. Allowed RPM to deteriorate un maintain dir ctl despite full l pedal.

## Other investigations on N5920X (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 MKC74FER29](https://openairdocs.org/ntsb/MKC74FER29), Dec 21, 1973: Brantly B2 (N5920X), Rosemount, MN, 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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