# NTSB MKC77FER40: Bell 47G, N5163B, Mankato, MN, May 14, 1977

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: May 14, 1977
- Place: Mankato, MN · MANKATO, MN
- Location: 44.1711° N, 93.9756° W: Placed by OpenAirDocs: center of Mankato, MN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.1711&lon=-93.9756&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report August 11, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 147546
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC77FER40
- Page: https://openairdocs.org/ntsb/MKC77FER40

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1401  77/5/14    MANKATO,MN          BELL 47G            CR-  0  0  1  NONCOMMERCIAL             STUDENT, AGE 19, 42 TOTAL
        TIME - 1415                    N5163B              PX-  0  0  0  PRACTICE                  HOURS, ALL IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          EDEN PRAIRIE,MN             MANKATO,MN
        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)
           WEATHER - TURBULENCE, ASSOCIATED W/CLOUDS AND/OR THUNDERSTORMS
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, BY PHONE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING OFF AIRPORT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          BROKEN                                                    6000
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      83
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          190                                                       14
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      VFR
```

## Aircraft

- Registration: N5163B (not matched to a registry record)
- Reported make and model: BELL 47G
- 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 19770514013689A](https://openairdocs.org/incident/19770514013689A), May 14, 1977: Bell 47G2, Mankato, 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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