LAX83FVM03

NTSB accident investigation · Falkenthal Varieze · Palo Alto, CA · September 2, 1982

Accident · Serious injuriesFinal report
Date
September 1, 1982, 18:10 local (Sep 2, 1982, 02:10 UTC)
Place
Palo Alto, CA
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N78EVFalkenthal Varieze
Weather
Visual (VMC) · Dusk
Status
Completed · report September 1, 1983
Report
Approved by Office Director
Case key
72148

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.

Airframe/component/system failure/malfunctionApproach - vfr pattern - final approach
Flt control syst,elevator control - undertorquedCause
Flt control syst,elevator control - disconnectedCause
Flt control syst,elevator control - disabledCause
Maintenance,installation - improperPilot in commandCause
Loss of control - in flightApproach - vfr pattern - final approach
In flight collision with terrain/waterApproach - vfr pattern - final approach

Analysis

During final approach the acft suddenly pitched down about 45 deg & crashed into a duck pond containing approximately 4-5 ft of water. During examination of the wreckage it was noted a bolt was missing that secures the elevator control stick, at the bellcrank, to the push-pull rod that extends to & operates the elevators attached to the canard. The plt stated that prior to this flt he had put in a new instrument panel during which the canard had been removed. He could not remember torquing the nut attaching the elevator push-pull rod to the bellcrank when he reinstalled the canard.

Aircraft

Registration
N78EV
Reported as
Falkenthal Varieze
Category
Airplane, amateur-built
Serial number
RAF 1803
Airframe hours
46
Engine
Continental O-200A, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Robert J. Falkenthal
Registered owner
Robert J. Falkenthal
Departed
L67 · Rialto, CA
Destination
Burbank, CA
Airport
PAO · Palo Alto, runway 30, 2,500 × 65 ft, asphalt

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
30
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Flight hours
270 total · 46 in this make and model · 152 as pilot in command · 17 in the last 90 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Dusk
Wind
20° at 8 knots
Visibility
8 statute miles
Observed at
PAO