# NTSB CHI71FEM75: Champion 7BCM, N81810, Manistique, MI, May 3, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 3, 1971
- Place: Manistique, MI · MANISTIQUE, MI
- Location: 45.9597° N, 86.2510° W: Placed by OpenAirDocs: center of Manistique, MI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=45.9597&lon=-86.2510&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report January 10, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 161601
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI71FEM75
- Page: https://openairdocs.org/ntsb/CHI71FEM75

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1553   71/5/3    MANISTIQUE,MICH     CHAMPION 7BCM       CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 46, 210
        TIME - 1045                    N81810              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 149 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - SCHOOLCRAFT
        DEPARTURE POINT             INTENDED DESTINATION
          MANISTIQUE,MICH             LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: AIRPORT HAZARD                            TAXI: FROM LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OBJECTS OR OBSTRUCTIONS
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: UNMARKED OBSTRUCTIONS
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: POORLY MAINTAINED RAMP/TAXIWAY SURFACE
        REMARKS- PLT TAXIED INTO UNMRKD HOLE IN TAXIWAY.
```

## Aircraft

- Registration: [N81810](https://openairdocs.org/aircraft/N81810), registered now, S/N 7AC-433, built 1945 (OpenAirDocs)
- Reported make and model: CHAMPION 7BCM
- Registry model: [Champion 7BCM](https://openairdocs.org/model/champion-7bcm) (registry code 21101ML) (OpenAirDocs)
- Registry engine: [Continental C85 series](https://openairdocs.org/engine/continental-c85-series) (registry code 17008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Schoolcraft

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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