DEN87LA097

NTSB accident investigation · Mclachlan Moni · Tooele, UT · April 15, 1987

Accident · Minor injuriesLimited investigationFinal report
Date
April 15, 1987, 09:30 local (15:30 UTC)
Place
Tooele, UT
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N96606Mclachlan Moni
Weather
Visual (VMC) · Day
Status
Completed · report November 8, 1988
Report
Approved by Office Director
FAA report
19870415010019A
Case key
17201

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) - nonmechanicalCruise - normal
Reason for occurrence undeterminedCause
Forced landingDescent - emergency
Loss of control - in flightManeuvering
Stall - inadvertentPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The private plt was cruising the local area near his home in his homebuilt experimental moni. The newly installed engine began to run rough. This engine is not a traditional acft engine and was a two cycle, two cylinder engine manufactured in italy, with an advertised 25 horsepower. A mixture control is remoted to the cockpit and the plt tried to adjust the mixture. Seconds later the engine quit. The plt tried to glide to a local arpt. There is a powerline across the approach to the rwy and the acft was too low to clear the wires. When the plt turned to avoid the wires, the acft stalled. The acft impacted almost 90 degrees nose down in a pasture.

Aircraft

Registration
N96606
Reported as
Mclachlan Moni
Category
Airplane, amateur-built
Serial number
00228
Airframe hours
121
Engine
KFM 107E, 25 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Scott R. Mclachlan
Registered owner
Scott R. Mclachlan
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · April 17, 1986
Departed
UT29 · Bollinder Field, UT

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
29
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Center
Flight hours
320 total · 121 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
160° at 7 knots
Visibility
30 statute miles
Lowest ceiling
None
Temperature
63 °F, dew point 30 °F
Altimeter
30.00 inHg
Observed at
SLC, 25 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.