# NTSB CHI82DA270: Austin S.E. 5A, N8040Z, Bolingbrook, IL, July 24, 1982

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: July 24, 1982, 12:33 local (17:33 UTC)
- Place: Bolingbrook, IL
- Location: 41.6861° N, 88.1070° W: Placed by OpenAirDocs: center of Bolingbrook, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.6861&lon=-88.1070&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 24, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 70001
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI82DA270
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/70001/pdf
- Page: https://openairdocs.org/ntsb/CHI82DA270

## Sequence of events

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

- Loss of control - in flight, maneuvering
  - aerobatics - performed, pilot in command (contributing factor)
  - airspeed - not maintained, pilot in command (cause)
  - stall - inadvertent, pilot in command
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE PILOTS OF AN AUSTIN S.E. 5A AND A FOLKER (BOTH WW I REPLICA AIRCRAFT) AGREED TO MAKE A PHOTO FLY-BY. THE PILOT OF THE AUSTIN TOOK OFF AS NUMBER ONE, BUT INSTEAD OF REMAINING IN THE TRAFFIC PATTERN, HE TURNED OUT OF THE PATTERN. THE FOLKER PILOT FOLLOWED IN TRAIL. REPORTEDLY, THE TWO AIRCRAFT ENTERED A DOG FIGHT TYPE OF PATTERN WHICH INVOLVED TURNS, DIVES AND CLIMBS. WHILE MANEUVERING, THE AUSTIN WAS OBSERVED TO MAKE A TURN OF ALMOST 180 DEGREES WHILE AT AN ALTITUDE OF ABOUT 200 TO 300 FT. THE PLANE THEN ROLLED LEVEL AND THE NOSE PITCHED DOWN ABOUT 45 DEGREES. SHORTLY AFTER THAT, THE PLANE IMPACTED THE GROUND.

## Aircraft

- Registration: [N8040Z](https://openairdocs.org/aircraft/N8040Z), registered now, S/N 072040, built 1980 (OpenAirDocs)
- Reported make and model: AUSTIN S.E. 5A
- Registry model: [Zilinsky S.E. 5A](https://openairdocs.org/model/zilinsky-s-e-5a) (registry code 0566307) (OpenAirDocs)
- Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 072040
- Airframe hours: 90
- Engines: LYCOMING O-235-C1 105 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Operator: Robert F. Zilinsky
- Registered owner: Robert F. Zilinsky
- Departed: BOLINGBROOK, IL
- Destination: BOLINGBROOK, IL

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 53; private; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; flight hours: 1,119 total, 62 in this make and model, 1,048 as pilot in command, 17 in the last 90 days, 5 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 260° at 3 knots
- Visibility: 10 statute miles
- Lowest ceiling: 4,500 ft broken
- Temperature: 180 °F
- Altimeter: 30.00 inHg
- Observed at: DPA, 15 nm away

## 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 19820724032009A](https://openairdocs.org/incident/19820724032009A), Jul 24, 1982: Amtrrp SE5AREPLICA, Bollingbrook, IL, Destroyed. Two world war 1 type replicas were involved in mock dog fight when one aircraft dived into ground.

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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