LAX85FA239

NTSB accident investigation · Earnst Skybolt · Paso Robles, CA · May 4, 1985

Accident · No injuriesField investigationFinal report
Date
May 4, 1985, 16:21 local (23:21 UTC)
Place
Paso Robles, CA
Injuries
2 uninjured
Phase of flight
Approach
Aircraft
N10DEEarnst SkyboltN3010VCessna 150
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Case key
24503

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.

Midair collisionApproach - vfr pattern - downwind
Landing gear,tailwheel assembly - disabled
Visual lookout - attemptedPilot in commandCause
Visual/aural perceptionPilot in commandCause
Landing gear,normal brake system - disconnected
Airport operations - inadequateAirport personnelFactor
Flight control,rudder - disconnected
Flight control,rudder surface - distorted
Loss of control - on ground/waterLanding - roll
Landing gear,main gear - failure,totalFactor
Directional control - not possiblePilot in commandFactor
Wing,spar - failure,totalFactor
Ground loop/swerve - uncontrolledPilot in command
Midair collisionApproach - vfr pattern - downwind
Wing,skin - penetrated
Visual lookout - attemptedPilot in commandCause
Visual/aural perceptionPilot in commandCause
Acft/equip inadequate,visual restrictionPilot in commandCause
Airport operations - inadequateAirport personnelFactor
Engine assembly,mount - bent

Analysis

A Cessna 150 and a home built skybolt acft collided while on a downwind leg of a traffic pattern to land. The skybolt was a competitor in a local aerobatic competition east of the arpt. The C-150 was returning from a student plt training x-country flt. Both acft had radios and had announced their positions in traffic. Both were flying straight & level at aprx 1800 ft AGL with the skybolt slightly higher. The acft converged slowly at about the same airspeed. An official of the competition warned the acft of their proximity. The Cessna plt both saw & felt his prop contact the tail section of the other acft as it came from behind and above him. The skybolt plt felt the impact and then saw the Cessna below him. Both acft were able to land but the skybolt groundlooped after landing due to damage to the landing gear. The competition contestants and normal traffic were intermixed in traffic with no attempt at segregation by designation of dedicated areas for each.

Aircraft · 2

Registration
N10DE
Reported as
Earnst Skybolt
Category
Airplane, amateur-built
Serial number
1
Airframe hours
275
Engine
Lycoming 0360, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 91
Operator
Dennis Earnst
Registered owner
Dennis Earnst
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · January 4, 1985
Airport
PRB · Paso Rubles Muni, runway 19, 6,009 × 150 ft, asphalt
Registration
N3010V
Reported as
Cessna 150
Category
Airplane
Serial number
76349
Airframe hours
4,895
Engine
Continental O-200-A, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 91
Operator
Patroline Inc., doing business as Executive Air Center
Registered owner
Patroline, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · April 27, 1985 · 10 hours before
Departed
L5Z · Oceano
Airport
PRB · Paso Rubles Muni, runway 19, 6,009 × 150 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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot, aircraft N10DE
Age
39
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Center
Flight hours
2,170 total · 270 in this make and model · 1,996 as pilot in command · 22 in the last 90 days · 7 in the last 30 days · 1 in the last 24 hours
Role
Pilot, aircraft N3010V
Age
41
Certificate
Student
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
47 total · 34 in this make and model · 15 as pilot in command · 7 in the last 90 days · 6 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
350° at 7 knots
Visibility
25 statute miles
Lowest ceiling
None
Temperature
84 °F, dew point 36 °F
Altimeter
29.00 inHg
Observed at
PRB

FAA reports on this event · 2

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