# NTSB MKC80FER37: Fly Baby BWM-10, N1081Z, Waubun, MN, April 26, 1980

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: April 26, 1980
- Place: Waubun, MN · WAUBUN, MN
- Location: 47.1839° N, 95.9401° W: Placed by OpenAirDocs: center of Waubun, MN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.1839&lon=-95.9401&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report July 14, 1980
- Report: Brief approved by the director
- NTSB case key (mKey): 130855
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC80FER37
- Page: https://openairdocs.org/ntsb/MKC80FER37

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1097  80/4/26    WAUBUN,MN           FLY BABY BWM-10     CR-  0  1  0  NONCOMMERCIAL             PRIVATE, AGE 49, 850
        TIME - 1930                    N1081Z              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 20 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          WAUBUN,MN                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: ACROBATICS
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           PILOT IN COMMAND - IMPROPER IN-FLIGHT DECISIONS OR PLANNING
           AIRFRAME - WINGS: WING ATTACHMENT FITTINGS,BOLTS
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY INSTALLED
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        REMARKS- L WG REAR ATCH BOLT PULLED LOOSE.HOLE IMPROPERLY DRILLED,BUSHING NOT INSTLD.ACFT RSTRD FM ACRO FLT
```

## Aircraft

- Registration: [N1081Z](https://openairdocs.org/deregistered/N1081Z-2011-07-05), registration cancelled 2011-07-05, S/N 5768, built 1971 (OpenAirDocs)
- Reported make and model: FLY BABY BWM-10
- Registry model: [Braun BWM-10](https://openairdocs.org/model/braun-bwm-10) (registry code 05601DW) (OpenAirDocs)
- Registry engine: [Continental A&C75 series](https://openairdocs.org/engine/continental-a-c75-series) (registry code 17005, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- 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 19800426010359A](https://openairdocs.org/incident/19800426010359A), Apr 26, 1980: Amtr BMW10, Waubun, MN, Substantial damage. Rear wing attach fittings failed during acrobatic flight. Defect in construction. Placarded against acrobatics.

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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