# NTSB CHI89LA016: Beech F35, N104TG, Milwaukee, WI, October 23, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: October 23, 1988, 17:10 local (22:10 UTC)
- Place: Milwaukee, WI
- Coordinates: 43.049098, -87.999366 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=43.0491&lon=-87.9994&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report December 3, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 14305
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI89LA016
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/14305/pdf
- Page: https://openairdocs.org/ntsb/CHI89LA016

## Sequence of events

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

- In flight collision with object, circling (ifr)
  - hazardous weather advisory - disregarded, pilot in command (contributing factor)
  - weather condition - icing conditions (contributing factor)
  - flight into known adverse weather - attempted, pilot in command (cause)
  - overconfidence in personal ability, pilot in command (contributing factor)
  - wing - ice (cause)
  - weather condition - gusts
  - airspeed - inadequate, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled
  - object - tree(s)
  - object - fence
  - terrain condition - roadway/highway

## Analysis

WHILE EXECUTING A VOR APPROACH AND CIRCLING TO LAND, THE AIRCRAFT COLLIDED WITH TREES AND A FENCE, THEN IMPACTED ON A ROADWAY SHORT OF THE RUNWAY. THE PILOT HAD OBTAINED A FULL WEATHER BRIEFING PRIOR TO HIS DEPARTURE. THE WEATHER BRIEFING INCLUDED SIGMET GOLF 1 ADVISING OF MODERATE, OCCASIONALLY SEVERE ICING CONDITIONS AND NUMEROUS PILOT REPORTS OF ICING ALONG HIS ROUTE OF FLIGHT. WITNESSES REPORTED THAT THEY OBSERVED ICE ON THE LEADING EDGE OF THE WINGS, AND PIECES OF ICE ON THE GROUND AROUND THE AIRCRAFT, AND THE PILOT REPORTED THAT HE ACCUMULATED APPROXIMATELY 3/8' ICE DURING THE DESCENT TO THE AIRPORT. THE PILOT ALSO STATED THAT HE ENCOUNTERED WIND GUSTS/WINDSHEAR ON FINAL APPROACH.

## Aircraft

- Registration: [N104TG](https://openairdocs.org/deregistered/N104TG-1991-08-20), registration cancelled 1991-08-20, S/N D4082 (OpenAirDocs)
- Reported make and model: BEECH F35
- Registry model: [Beech F35](https://openairdocs.org/model/beech-f35) (registry code 1151514) (OpenAirDocs)
- Category: Airplane
- Serial number: D-4082
- Airframe hours: 6347
- Engines: CONTINENTAL E-225-8 225 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Groszer, Tod
- Registered owner: Groszer, Todd & Robert D.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 9, 1988, 98 hours before
- Departed: MQT, MARQUETTE, MI
- Destination: MWC, MILWAUKEE, WI
- Flight plan: IFR
- Airport: MWC, Milwaukee Timmerman

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 29; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 719 total, 241 in this make and model, 600 as pilot in command, 97 in the last 90 days, 21 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 290° at 14 knots, gusting 22
- Visibility: 4 statute miles
- Lowest ceiling: 900 ft broken
- Temperature: 39 °F, dew point 37 °F
- Altimeter: 29.00 inHg
- Observed at: MWC

## 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 19881023047699A](https://openairdocs.org/incident/19881023047699A), Oct 23, 1988: Beech F35, Milwaukee, WI, Substantial damage. Turbulence, crosswind and airframe ice contributed to a crash short of runway. Was advised of severe icing prior.

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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