Aviation Crash Map

Chappel RATSREPUS 300 N889HC

25 May 1988 · Pontiac, Michigan, United States · Fatal

Summary

On 25 May 1988 at about 19:07 local time, a Chappel RATSREPUS 300 registered N889HC, operated by Harold R. Chappel II, was involved in an accident near Pontiac, Michigan, United States. One person was on board and one died. The aircraft was destroyed. The NTSB has published a probable cause for this accident; it is quoted in full below.

The record

Date
at 19:07
Classification
Accident
Location
Pontiac, Michigan, United States
Nearest airport
Oakland/Pontiac (PTK)
Coordinates
Not recorded
Aircraft
Chappel RATSREPUS 300
Registration
N889HC
Category
Airplane
Engines
1
Operator
Harold R. Chappel II
Operating rule
Part 91: General Aviation
Purpose of flight
Personal
Phase of flight
Not recorded
Route
Pontiac → Unknown
Aircraft damage
Destroyed
Weather
VMC
Light
Day
NTSB number
CHI88DEC02

People

1 person died.

On board Died Serious Minor Uninjured
1 1 0 0 0

Probable cause

DESTRUCTIVE WING/AILERON FLUTTER IS SUSPECTED, BUT NOT SUFFICIENTLY SUBSTANTIATED THROUGH RESEARCH AND CALCULATIONS TO BE CITED AS THE PROBABLE CAUSE OF THIS ACCIDENT.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

THE PILOT WAS TESTING THIS EXPERIMENTAL ACROBATIC AIRCRAFT, MAKING A SECOND LOW PASS OVER THE RUNWAY WHEN A PORTION OF THE LEFT WING SEPARATED FROM THE AIRCRAFT, FOLLOWED BY LOSS OF THE LEFT AILERON, 1 1/2 ROLLS TO THE LEFT AND GROUND IMPACT. THE AIRFRAME TOTAL TIME WAS 4 HOURS. ON-SCENE INSPECTION REVEALED NO MASS BALANCE IN THE AILERONS. WITNESSES ESTIMATE SPEEDS AT OR ABOVE 150 MPH. A DESIGNATED ENGINEERING REPRESENTATIVE IN THE AREA OF FLUTTER AND VIBRATION STATED HE HAD RECOMMENDED THAT THE AIRSPEED BE LIMITED TO A MAXIMUM SPEED OF APPROXIMATELY 135 MPH UNTIL GROUND VIBRATION TESTS WERE CONDUCTED.

Quoted verbatim from the NTSB record.

Other accidents in this area

Date Aircraft Location Operator Outcome Died
16 Jan 1988 Cessna 172P
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no coordinates
Dave No injuries -
4 Feb 1988 Beechcraft A36
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Pontiac, Michigan, United States
no coordinates
- No injuries -
19 Oct 1988 Piper PA-31-350
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Big Rapids, Michigan, United States - No injuries -
13 Feb 1988 Cessna 152
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Lansing, Michigan, United States Carlson Aviation Service, Inc. No injuries -
11 Feb 1988 Cessna 172F
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Brighton, Michigan, United States
no coordinates
- No injuries -
7 Nov 1988 Cessna 150J
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Carson City, Michigan, United States
no coordinates
Vandenburg, Jerome A. No injuries -

All 170,864 records in United States