LAX02LA132

NTSB accident investigation · Cox Aeros Ltd Skyranger · Gila Bend, AZ · April 10, 2002

Accident · Serious injuriesLimited investigationFinal report
Date
April 10, 2002, 08:30 local (15:30 UTC)
Place
Gila Bend, AZ
Injuries
1 serious, 1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
UNREGCox Aeros Ltd Skyranger
Weather
Visual (VMC) · Day
Status
Completed · report November 25, 2003
Report
Approved by Office Director
Parties
FAA
Case key
54510

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

The failure of the engine for undetermined reasons.

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 powerClimb - to cruise
Reason for occurrence undeterminedCause
Forced landingEmergency landing after takeoff
In flight collision with terrain/waterEmergency landing
Terrain condition - rough/uneven
Nose gear collapsedEmergency landing

Analysis

An unregistered, experimental homebuilt aircraft collided with the ground during a forced landing after an engine failure. The airplane was not issued a waiver as required for operation by Part 103 of the Federal Aviation Regulations. After departing to practice touch-and-go's the engine lost power; consequently, the pilot made a forced landing in the rough, desert terrain. Upon touchdown, the nosegear collapsed and the cowling and windshield were damaged. The speed of the airplane was between 40-45 miles per hour.

Factual narrative

On April 10, 2002, about 0830 mountain standard time, an unregistered, experimental homebuilt Cox Aeros Ltd. Skyranger, collided with the ground during a forced landing at Gila Bend, Arizona. The owner/operator was operating the airplane under the provisions of 14 CFR Part 91. The private pilot sustained minor injuries and the passenger sustained serious injuries; the airplane sustained substantial damage. The purpose of the flight was to practice touch-and-go landings. Day visual meteorological conditions prevailed, and no visual flight rules (VFR) flight plan had been filed.

Through a written statement, the pilot stated that after departing runway 22 to practice touch-and-go's, approximately 300 yards beyond the end of the runway a computer malfunction resulted in instant shutdown of the engine; consequently, the pilot made a forced landing in the rough, desert terrain. The pilot further stated that upon touchdown, the nosegear collapsed and the cowling and windshield were damaged. The speed of the airplane was between 40-45 miles per hour.

According to a local law enforcement report, the pilot had departed to the west from the municipal airport. The runway is oriented 040/220 degrees, according to the Southwest U.S. Airport/Facility Directory. About 150 to 200 feet above the ground (agl), the engine lost power and a forced landing ensued.

According to the engine manufacturer, if the computer does not receive power from the battery, the engine will quit.

The two-place ultralight trainer airplane was registered with the United States Ultralight Association but the owner/operator did not apply for a waiver as required by Federal Aviation Regulations Part 103.

Aircraft

Registration
UNREG
Reported as
Cox Aeros Ltd Skyranger
Category
Airplane, amateur-built
Serial number
SK1035
Airframe hours
35
Engine
Hirth 2706E06A, 65 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Fred W. Cox
Departed
E63 · Gila Bend, AZ
Airport
E63 · Gila Bend, runway 22, 5,200 × 75 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
63
Injuries
Minor
Certificate
Private
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Last flight review
January 1, 2002
Seat
Left
Flight hours
1,500 total · 35 in this make and model · 35 in the last 90 days · 15 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
120° at 4 knots
Visibility
20 statute miles
Lowest ceiling
None
Temperature
72 °F, dew point 34 °F
Altimeter
30.04 inHg
Observed at
GBN, 3 nm away

Docket · 6

The files NTSB released with the investigation on August 19, 2003, on NTSB’s docket system: statements, records, photos and specialists’ reports. 633 KB in all.