# NTSB CHI90DEC01: Moore Acroduster II SA750, N103GM, New Haven, MI, April 29, 1990

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Final report
- Date: April 29, 1990, 12:01 local (16:01 UTC)
- Place: New Haven, MI
- Coordinates: 42.729682, -82.790122 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.7297&lon=-82.7901&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed, report February 12, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 14442
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI90DEC01
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/14442/pdf
- Page: https://openairdocs.org/ntsb/CHI90DEC01

## Probable cause

THE PILOT'S THE IMPROPER EXECUTION AND/OR RECOVERY FROM AN AEROBATIC MANEUVER (INVERTED FLAT SPIN), WHICH RESULTED IN A COLLISION WITH THE TERRAIN.

## Sequence of events

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

- In flight collision with terrain/water, maneuvering
  - aerobatics - improper, pilot in command (cause)

## Analysis

THE PILOTS WERE PRACTICING AEROBATIC MANEUVERS WHEN THE ACCIDENT OCCURRED. ACCORDING TO WITNESSES, TWO INVERTED FLAT SPINS HAD BEEN PERFORMED SUCCESSFULLY. THE ACCIDENT OCCURRED DURING THE THIRD INVERTED FLAT SPIN WHEN A FAILURE TO RECOVER RESULTED IN IMPACT WITH THE TERRAIN.

## Aircraft

- Registration: [N103GM](https://openairdocs.org/deregistered/N103GM-1990-12-12), registration cancelled 1990-12-12, S/N 103 (OpenAirDocs)
- Reported make and model: MOORE ACRODUSTER II SA750 (ACRODUSTER)
- Registry model: [Moore Gordon C ACRODUSTER 2 SA750](https://openairdocs.org/model/moore-gordon-c-acroduster-2-sa750) (registry code 8660542) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 103
- Engines: LYCOMING IO-540-G1C5 reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Registered owner: Gordon C. Moore

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 50; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: front; toxicology performed

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 10 knots
- Visibility: 7 statute miles
- Lowest ceiling: 22,000 ft overcast
- Temperature: 64 °F, dew point 54 °F
- Altimeter: 29.00 inHg
- Observed at: MTC

## 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 19900429012089A](https://openairdocs.org/incident/19900429012089A), Apr 29, 1990: Amtrso ACRODUSTER2, New Haven, MI, Destroyed, 2 fatal. Went into a flat inverted spin during a series of acrobatics and failed to recover.

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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