CHI88DEM06

NTSB accident investigation · Koopsen Miller Sport II · Lake City, MI · June 10, 1988

Accident · No injuriesFinal report
Date
June 10, 1988, 13:30 local (17:30 UTC)
Place
Lake City, MI
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N5574AKoopsen Miller Sport II
Weather
Visual (VMC) · Day
Status
Completed · report August 8, 1989
Report
Approved by Office Director
FAA report
19880610025509A
Case key
13868

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine power(total) - mech failure/malfApproach - vfr pattern - base leg/base to final
Throttle/power lever,linkage - disconnectedCause
Acft/equip,inadequate designManufacturerFactor
Forced landingDescent - emergency
In flight collision with objectDescent - emergency
Object - tree(s)Factor

Analysis

Just prior to turning on final approach to land, the pilot experienced a complete loss of power. He continued the approach but decelerated more rapidly than he anticipated and was unable to clear a stand of trees on the approach path. Examination revealed a loss of continuity in the throttle linkage which was disconnected at the carburetor. The owner/plt stated that even though it looked secure it was possible to pull the throttle cable loose from the carburetor and he thought it should be redesigned.

Aircraft

Registration
N5574A
Reported as
Koopsen Miller Sport II (MILLER SPO)
Category
Airplane, amateur-built
Serial number
10
Engine
Continental A65-8, 65 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Paul E. Kauffman
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · April 21, 1986 · 17 hours before
Departed
Y17 · Acme, MI
Airport
Y91 · Home Acres, runway 36, 2,600 × 150 ft, grass/turf

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
68
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
1,467 total · 22 in this make and model · 1,397 as pilot in command · 8 in the last 90 days · 3 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 5 knots
Visibility
20 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point -0 °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.