LAX89FA099

NTSB accident investigation · Silvaire 8F · Lake Elsinore, CA · January 29, 1989

Accident · FatalField investigationFinal report
Date
January 28, 1989, 17:15 local (Jan 29, 1989, 01:15 UTC)
Place
Lake Elsinore, CA
Injuries
1 fatal, 1 serious
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N3550GSilvaire 8F
Weather
Visual (VMC) · Day
Status
Completed · report June 22, 1992
Report
Approved by Office Director
FAA report
19890128001409A
Case key
26209

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

Loss of aircraft control due to improper and/or unapproved modifications to the aircraft's aileron control system by the pilot/owner. A contributing factor was the pilot/owner's overconfidence in his ability to modify the aileron control system without approval by the manufacturer or the FAA.

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.

Airframe/component/system failure/malfunctionTakeoff - initial climb
Flt control syst,aileron control - improperCause
Maintenance,modification - improperPilot in commandCause
Overconfidence in personal abilityPilot in commandFactor
Loss of control - in flightTakeoff - initial climb
In flight collision with terrain/waterTakeoff - initial climb

Analysis

Immediately after takeoff, at 300-400 ft AGL, the acft suddenly rolled into a 90 deg bank to the right and spun to the ground. The pilot/owner had performed modifications to the aileron control system which were contrary to the manufacturer's specifications and without FAA approval. Another Luscombe pilot/owner had performed the same modification of the aileron's rigging to his own acft which resulted in the acft's roll becoming unstable when banking over 30 deg. He informed the accident pilot that the aileron rigging modification had proved unsatisfactory. Another modification was the removal of fairleads which were originally located in the area of the door posts and replaced with metal pulleys. The pilot had been diabetic for over 20 years; no mention of this on the pilot's medical applications.

Aircraft

Registration
N3550G
Reported as
Silvaire 8F
Category
Airplane
Serial number
S-82
Engine
Continental C-90-12-F, 90 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Operator
Steven M. Grant
Registered owner
Steven And Marianne Grant
Airworthiness certificate
Standard, Normal
Departed
CL47 · Lake Elsinore, CA
Destination
L66 · Corona, CA
Airport
CL47 · Skylark, runway 29R, 2,800 × ft, dirt

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
34
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Expired
Seat
Left
Toxicology
Performed
Flight hours
300 total

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
15 statute miles
Lowest ceiling
None
Temperature
55 °F

FAA reports on this event · 1

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

Other investigations on N3550G · 1

Matched to the same aircraft by N-number and date.