# NTSB MKC83FA161: American Eagle 2-PLACE, N911AA, Chesterfield, MO, July 20, 1983

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: July 19, 1983, 19:15 local (Jul 20, 1983, 00:15 UTC)
- Place: Chesterfield, MO
- Coordinates: 38.660072, -90.209426 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.6601&lon=-90.2094&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 33339
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC83FA161
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/33339/pdf
- Page: https://openairdocs.org/ntsb/MKC83FA161

## Sequence of events

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

- Loss of control - in flight, maneuvering
  - flight control surfaces/attachments - inadequate (cause)
  - aircraft manuals,procedure information - inadequate (cause)
- In flight collision with terrain/water, maneuvering
  - safety system(other) - inadequate (cause)

## Analysis

THE ACFT WAS FIRST OBSERVED IN A LEFT 30 DEG BANK TURN WITH THE NOSE SLIGHTLY DOWN. AFTER THE FIRST 360 DEG TURN, THE ANGLE OF BANK INCREASED TO 60 DEG. DURING THE 3RD 360 DEG TURN, THE DIAMETER OF THE TURN DECREASED TO ABOUT 100 FT & THEFORWARD SPEED APPEARED TO STOP. THE ACFT THE DROPPED OFF IN A LEFT WING DOWN SIDE-SLIP. AT 500 FT AGL THE BRS EXPLOSIVE CHARGE FIRED & THE PARACHUTE CANOPY OPENED TO ABOUT 3-5 FT DIAM. THE ACFT PITCHED FURTHER DOWN & THE BANK ANGLE INCREASED TO 70-80 DEG. THE PARACHUTE SEPARATED & THE ACFT SPIRALED TO THE GROUND. THE BRIDLE OF THE CHUTE WAS FOUND TO HAVE BEEN CUT BY A SHARP PIECE OF METAL NEAR ITS ATTACHMENT POINT. SUBSEQUENT TO THE ACCIDENT, THE PRODUCER OF THE ACFT ISSUED A SAFETY BULLETIN REQUIRING MODIFICAITONS. THE NOW-STANDARD LARGER SPAN CANARD IS TO BE INSTALLED IN ALL ACFT IN THE FIELD. A 3RD SLAT BRACKET IS TO BE INSTALLED ON ALL LEADING EDGE SLATS. RESTRICTOR LINES ARE TO INSTALLED TO LIMIT THE MAX TRAVEL OF THE RUDDERS. OWNERS INFORMED TO RESTRICT BANK TO 30 DEG UNTIL FLIGHT TESTS COMPLETED.

## Aircraft

- Registration: N911AA (not matched to a registry record)
- Reported make and model: AMERICAN EAGLE 2-PLACE
- Category: Airplane, amateur-built
- Serial number: 002
- Airframe hours: 20
- Engines: ROTAX 503 46 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Registered owner: Jerald E. Havard
- Airworthiness certificate: Special, Experimental (Special)
- Airport: 02K, Arrowhead, runway 20, 2,880 × 50 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 36; private; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: left; toxicology performed; flight hours: 250 total, 40 in this make and model, 25 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 320° at 7 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 84 °F
- Altimeter: 30.00 inHg

## 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 19830719037209A](https://openairdocs.org/incident/19830719037209A), Jul 19, 1983: Amtr EAGLEXL2, Chesterfield, MO, Destroyed, 1 fatal. Lost control during a steep slipping bank. Safety chute deployed but cut off by airframe. Steep banks prohibited.

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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