# NTSB CHI67F0287: Beech D18S, N86K, Muskegon, MI, October 13, 1966

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: October 13, 1966
- Place: Muskegon, MI · MUSKEGON, MI
- Location: 43.2265° N, 86.2572° W: Placed by OpenAirDocs: center of Muskegon, MI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.2265&lon=-86.2572&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report December 15, 1966
- Report: Brief approved by the director
- NTSB case key (mKey): 120749
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI67F0287
- Page: https://openairdocs.org/ntsb/CHI67F0287

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3150  66/10/13 NR.MUSKEGON MICH      BEECH D18S          CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1620                    N86K                PX-  0  0  0  DUAL                      AGE 27, 2740 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            800 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - MUSKEGON COUNTY
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           OVERSHOOT                                                LANDING: LEVEL OFF/TOUCHDOWN
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
        PROBABLE CAUSE(S)
           DUAL STUDENT - MISJUDGED DISTANCE AND SPEED
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
        FACTOR(S)
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: WET RUNWAY
           MISCELLANEOUS ACTS,CONDITIONS - DOWNWIND
        REMARKS- AIRCRAFT INTENTIONALLY GROUND LOOPED BY INSTRUCTOR PILOT. STUDENT PILOT LACKED RECENT FLIGHT TIME.
```

## Aircraft

- Registration: [N86K](https://openairdocs.org/deregistered/N86K-2017-03-27), registration cancelled 2017-03-27, S/N A247, built 1946 (OpenAirDocs)
- Reported make and model: BEECH D18S
- Registry model: [Beech D18S](https://openairdocs.org/model/beech-d18s) (registry code 1151004) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Muskegon County

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.