# Accident 19990815024029A: Amtr AVENGER, Chicago, IL, August 15, 1999

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 15, 1999
- Place: Chicago, IL
- Airport: Lansing Municipal Airport
- Damage: Destroyed
- Phase of flight: Unknown/Not Reported
- Operating rules: General operating rules (Part 91)
- Location: 41.5610° N, 87.5390° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=41.5610&lon=-87.5390&mi=10
- Aircraft: N4088X, a cancelled registration (https://openairdocs.org/deregistered/N4088X-2018-01-18) (OpenAirDocs)
- Registry model: Hudson Roy AVENGER (registry code 05626DH, https://openairdocs.org/model/hudson-roy-avenger) (OpenAirDocs)
- Registry engine: Lycoming 0-320 series (registry code 41508, https://openairdocs.org/engine/lycoming-0-320-series) (OpenAirDocs)
- Reported make and model: AMTR AVENGER
- People aboard: 2
- Fatal injuries: 2
- NTSB investigation: [NTSB CHI99FA293](https://openairdocs.org/ntsb/CHI99FA293) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19990815024029A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(.19) ON AUGUST 16, 1999, AT 1438 CENTRAL DAYLIGHT TIME, A HUDSON AVENGER GYROCOPTER, N4088X, PILOTED BY A PRIVATE PILOT AND A STUDENT PILOT, WAS DESTROYED ON IMPACT WITH A BEAN FIELD APPROXIMATELY 1,000 FEET SOUTH OF THE LANSING MUNICIPAL AIRPORT, LANSING, ILLINOIS. VISUAL METEOROLOGICAL CONDITIONS PREVAILED AT THE TIME OF THE ACCIDENT.  THE 14 CFR PART 91 PERSONAL FLIGHT WAS NOT OPERATING ON A FLIGHT PLAN.  BOTH PILOTS SUSTAINED FATAL INJURIES.  THE LOCAL FLIGHT WAS ORIGINATING AT THE TIME OF THE ACCIDENT. PIECES OF THE VERTICAL STABILIZER(S) WERE LOCATED ALONG A 300 FOOT PATH NORTH OF THE MAIN WRECKAGE.                                                             (-23)SHORTLY AFTER TAKEOFF,THE AIRCRAFT PITCHED UP ABRUPTLY,NOSED OVER AND BECAME INVERTED.  AT APPROXIMATELY 100' ONE OCCUPANT WAS EITHER THROWN, OR JUMPED FROM THE AIRCRAFT.

## The NTSB's investigation of this event (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 CHI99FA293](https://openairdocs.org/ntsb/CHI99FA293), Aug 15, 1999: Hudson Avenger (N4088X), Lansing, IL, destroyed, 2 fatal. Probable cause: the weight and balance exceeded by the owner/builder. The inadequate preflight planning/preparation by the owner/builder.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.