# NTSB CHI84LA200: Grumman AA-1B, N8973L, Millstadt, IL, May 20, 1984

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: May 20, 1984, 14:35 local (19:35 UTC)
- Place: Millstadt, IL
- Coordinates: 38.449489, -90.089683 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.4495&lon=-90.0897&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12618
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI84LA200
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12618/pdf
- Page: https://openairdocs.org/ntsb/CHI84LA200

## 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 - final approach
  - object - tree(s) (contributing factor)
  - in-flight planning/decision - improper, pilot in command (cause)
  - throttle/power control - improper use of, pilot in command (cause)
  - airspeed - not maintained, pilot in command (cause)
  - stall - not corrected, pilot in command (cause)
- Undershoot, approach - vfr pattern - final approach
- Nose over, landing - flare/touchdown
  - landing gear,nose gear - overload (contributing factor)

## Analysis

THE ACFT WAS STALLED DURING THE LANDING APPROACH OVER TREES TO AN 1800 FT STRIP. AFTER CLEARING THE TREES THE PLT REDUCED THE POWER TO IDLE WHILE APRX 30 FT AGL. THE ACFT STALLED, CONTACTED THE SOFT PLOWED SOIL AND NOSED OVER ABOUT 150 FT SHORT OF THE RWY.

## Aircraft

- Registration: [N8973L](https://openairdocs.org/deregistered/N8973L-2021-05-19), registration cancelled 2021-05-19, S/N AA1B-0423, built 1974 (OpenAirDocs)
- Reported make and model: GRUMMAN AA-1B
- Registry model: [Grumman American Avn. AA-1B](https://openairdocs.org/model/grumman-american-avn-aa-1b) (registry code 3960103) (OpenAirDocs)
- Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Serial number: AA1B0425
- Airframe hours: 1626
- Engines: LYCOMING O-235-C2C 108 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Michael M. Grdnic
- Registered owner: Mathew M. Grunic
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, July 17, 1983, 33 hours before
- Departed: MILLSTADT, IL
- Destination: MILLSTADT, IL
- Airport: Rla, runway 27, 1,880 × 50 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 68; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 965 total, 76 in this make and model, 4 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 220° at 8 knots
- Visibility: 8 statute miles
- Lowest ceiling: 6,000 ft broken
- Altimeter: 29.00 inHg
- Observed at: CPS, 6 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 19840520051669A](https://openairdocs.org/incident/19840520051669A), May 20, 1984: Gulstm AA1, Millstadt, IL, Substantial damage. Pilot stalled aircraft during flare for landing. Aircraft hit hard breaking landing gear and flipped over.

## Other investigations on N8973L (1)

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.

- [NTSB CHI78FET14](https://openairdocs.org/ntsb/CHI78FET14), Feb 18, 1978: Grum Amer AA-1B (N8973L), Fort Wayne, IN, substantial damage

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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