NYC89DNE02

NTSB accident investigation · Smith Mini DSA-1 · Sterling, CT · May 12, 1989

Accident · FatalFinal report
Date
May 12, 1989, 12:10 local (16:10 UTC)
Place
Sterling, CT
Injuries
1 fatal
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N21HSmith Mini DSA-1
Weather
Visual (VMC) · Day
Status
Completed · report September 9, 1992
Report
Approved by Office Director
FAA report
19890512011319A
Case key
36248

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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Probable cause

The pilot's failure to maintain control of the experimental aircraft while performing aerobatic maneuvers, and the aircraft's resultant uncontrolled descent into the ground.

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
Aerobatics - intentionalPilot in command
Aircraft control - not maintainedPilot in commandCause
Lack of total experience in type of aircraftPilot in commandFactor
Remedial action - inadequatePilot in command
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - ground
Terrain condition - high vegetation

Analysis

The aircraft was observed performing aerobatics before it impacted the ground, in an inverted, nose down attitude. The pilot's records indicate a total flight time of 600 hours, of which about 3 hours were in the accident aircraft. Records indicate that the accident aircraft had been flown approximately 4 hours in the preceding 8 1/2 years.

Aircraft

Registration
N21H
Reported as
Smith Mini DSA-1
Category
Airplane, amateur-built
Serial number
3840-15A
Engine
Franklin SPORT 48, 230 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
William J. Navan, Jr.
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Unknown · July 3, 1980 · 4 hours before
Departed
R11 · Riconn, RI
Destination
R11 · Riconn, RI

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
51
Certificate
Commercial
Airplane ratings
Single-engine land, Single-engine sea, Multi-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Center
Toxicology
Performed
Flight hours
600 total · 3 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
70 °F, dew point -0 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.