# NTSB CHI86FA171: Aero Commander 100, N3667X, Crivitz, WI, July 16, 1986

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: July 16, 1986, 08:45 local (13:45 UTC)
- Place: Crivitz, WI
- Coordinates: 45.230766, -88.000793 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.2308&lon=-88.0008&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 13261
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI86FA171
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13261/pdf
- Page: https://openairdocs.org/ntsb/CHI86FA171

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of control - in flight, approach - vfr pattern - base leg/base to final
  - weather condition - low ceiling (contributing factor)
  - flight into known adverse weather - performed, pilot in command (cause)
  - overconfidence in personal ability, pilot in command (cause)
  - judgment - poor, pilot in command (cause)
  - diverted attention, pilot in command (cause)
  - airspeed - not maintained, pilot in command (cause)
  - stall - inadvertent, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

FOLLOWING ONE APPROACH TO LAND UNDER CONDITIONS OF LOW VISIBILITY (LESS THAN 1/4 MILE) THE PILOT ATTEMPTED TO LAND AGAIN. ON BASE LEG, ACCORDING TO WITNESSES, THE AIRCRAFT FELL TO THE GROUND. IN THE WRECKAGE THE STALL WARNING LIGHT BULB FILAMENT WAS GROSSLY DISTORTED. THE PILOT WAS TRAINED AS A PRIVATE PILOT ONLY. ALL BUT ONE WITNESS STATED THAT THE ENGINE WAS OPERATING NORMALLY UNTIL THE CRASH.

## Aircraft

- Registration: N3667X (not matched to a registry record)
- Reported make and model: AERO COMMANDER 100
- Category: Airplane
- Serial number: 315
- Airframe hours: 3617
- Engines: LYCOMING O-320-A2B 150 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Operator: Helmut F. Bauer
- Registered owner: Helmut F. Bauer
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 16, 1986, 12 hours before
- Departed: 02C, BROOKFIELD, WI
- Airport: 3D1, Crivitz, runway 18, 2,510 × 70 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 68; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; toxicology performed; flight hours: 842 total, 398 in this make and model, 776 as pilot in command, 18 in the last 90 days, 18 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Instrument (IMC), Day

## 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 19860716033869A](https://openairdocs.org/incident/19860716033869A), Jul 16, 1986: Slinds 100ACMDR, Crivitz, WI, Destroyed. The aircraft stalled and impacted in an open field while maneuvering in IFR conditions. VFR pilot.

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.