MKC85FA133

NTSB accident investigation · Hildebrand Spezio Sport DAL-1 · Gravois Mills, MO · June 17, 1985

Accident · FatalField investigationFinal report
Date
June 16, 1985, 19:35 local (Jun 17, 1985, 00:35 UTC)
Place
Gravois Mills, MO
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N1141LHildebrand Spezio Sport DAL-1
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19850616067699A
Case key
33841

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

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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 control - in flightManeuvering
Buzzing - performedPilot in commandCause
Stall - inadvertentPilot in commandCause
In flight collision with objectDescent - uncontrolled
Object - building(nonresidential)
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - water,glassy

Analysis

Witnesses reported that the acft made at least two complete circles over a cove on lake of the ozarks at low alt. Part of the acft track took it over the southeast shoreline where several lake homes are located. During the third circle, as the acft approached the lake in a rt turn, the rt wing dropped abruptly, the acft descended and hit a covered boat dock. The acft then fell into the lake beside the dock.

Aircraft

Registration
N1141L
Reported as
Hildebrand Spezio Sport DAL-1 (SPEZIO SPO)
Category
Airplane, amateur-built
Serial number
85
Airframe hours
360
Engine
Lycoming O-290-G, 125 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Lee Mace
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · October 11, 1984 · 9 hours before
Departed
K15 · Osage Beach, MO

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
24
Certificates
Commercial, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Front
Toxicology
Performed
Flight hours
4,000 total

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 8 knots
Visibility
20 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 64 °F
Altimeter
29.00 inHg
Observed at
COU, 42 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.