LAX91FA156

NTSB accident investigation · Herbert W. Ross RV-4 · Santa Paula, CA · April 3, 1991

Accident · FatalField investigationFinal report
Date
April 3, 1991, 11:24 local (19:24 UTC)
Place
Santa Paula, CA
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N45EMHerbert W. Ross RV-4
Weather
Visual (VMC) · Day
Status
Completed · report April 23, 1993
Report
Approved by Office Director
FAA report
19910403008239A
Case key
26992

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

That the pilot inadvertently selected the wrong fuel tank and the passenger interfered with the flight controls when the seat back failed.

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) - nonmechanicalTakeoff - initial climb
Single engine aircraft
Aircraft preflight - improperPilot in commandCause
Fuel tank selector position - improperPilot in commandFactor
Forced landingDescent - emergency
Emergency procedure - not possiblePilot in commandFactor
On ground/water collision with objectLanding - roll
Control interference - inadvertentPassengerCause
Stall - inadvertentPilot in commandFactor
Loss of engine power(total) - nonmechanicalTakeoff - initial climb
Object - vehicle

Analysis

Shortly after liftoff on runway 22 the tandem seating airplane experienced a total loss of power followed by the airplane's nose pitching up rapidly and then stall. The airplane collided with a golf cart and burst into flames. Both occupants were killed from the resulting post impact fire. Witnesses reported that only the pilot was observed at the time the airplane pitched up. The pilot was found lying forward and the rear seat occupant was lying supine partly in the aft fuselage. Examination disclosed the rear seat passenger's seat failed in a rearward direction and that the fuel selector valve was selected to the off position.

Aircraft

Registration
N45EM
Reported as
Herbert W. Ross RV-4
Category
Airplane, amateur-built
Serial number
29
Engine
Lycoming O-360-E2, 150 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Operator
S. K. Franks
Registered owner
S. K. Franks
Last inspection
Continuous airworthiness · December 1, 1990
Airport
SZP · Santa Paula, runway 22, 2,650 × 40 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
51
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Front
Toxicology
Performed
Flight hours
15,000 total · 5 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
250° at 5 knots
Visibility
25 statute miles
Lowest ceiling
None
Temperature
75 °F

FAA reports on this event · 1

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