LAX95LA336

NTSB accident investigation · Sjostrand Wheeler Express · Mariposa, CA · September 14, 1995

Accident · No injuriesLimited investigationFinal report
Date
September 14, 1995, 16:00 local (23:00 UTC)
Place
Mariposa, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N360EZSjostrand Wheeler Express
Weather
Visual (VMC) · Day
Status
Completed · report March 21, 1996
Report
Approved by Office Director
FAA report
19950914029849A
Case key
29218

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

the pilot's premature rotation and liftoff, which resulted in an inadvertent stall and subsequent hard touchdown.

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 flightTakeoff - initial climb
Rotation - prematurePilot in commandCause
Airspeed(vs) - not obtained/maintainedPilot in commandCause
Stall/mush - inadvertentPilot in command
Hard landingDescent - uncontrolled
Terrain condition - runway
Gear collapsedLanding - flare/touchdown
Landing gear,main gear - overload
Landing gear,nose gear - overload

Analysis

The pilot reported that this was the first flight of the newly constructed aircraft. After liftoff, the aircraft experienced an unexpected departure stall and settled to the runway from about 12 feet. The aircraft touched down hard and collapsed the nose and left main landing gear.

Factual narrative

On September 14, 1995, about 1600 Pacific daylight time, a Sjostrand Wheeler Express homebuilt experimental airplane, N360EZ, collided with the runway following a loss of control during the takeoff initial climb at Mariposa, California. The aircraft was owned and operated by the pilot, and was beginning a local area personal flight. Visual meteorological conditions prevailed at the time and no flight plan was filed. The aircraft incurred substantial damage. The certificated private pilot, the sole occupant, was not injured. The flight was originating at the time of the accident.

The pilot reported that this was the first flight of the newly constructed aircraft. After liftoff, the aircraft experienced an unexpected departure stall and settled to the runway from about 12 feet. The aircraft touched down hard and collapsed the nose and left main landing gear.

Aircraft

Registration
N360EZ
Reported as
Sjostrand Wheeler Express (WHEELER EX)
Category
Airplane, amateur-built
Serial number
SJ2146
Engine
Continental IO-360-ES1B, 210 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Gerald D. Sjostrand
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · September 1, 1995 · 0 hours before
Departed
O68
Airport
068 · Mariposa Yosimite, runway 26, 3,310 × 50 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
64
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
3,500 total · 10 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
30 statute miles
Lowest ceiling
None
Temperature
90 °F

FAA reports on this event · 1

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