19960702015779A

Accident · Destroyed

FAA accident report · Amtr CHALLENGER1 · Paso Robles, CA · July 2, 1996

Date
July 2, 1996 · 08:55 local
Place
Paso Robles, CA
Airport
Paso Robles Municipal
Phase of flight
To Init Climb(1st Pwr Reduct)
Operating rules
General operating rules (Part 91)
Damage
Destroyed
Aircraft
N75489
NTSB investigation
NTSBLAX96LA258
Reported as
Amtr CHALLENGER1
Reported engine
ROTAX ROTAX503
People aboard
1
Fatal injuries
1
Pilot’s flight hours
185 total4 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

Crashed on runway during takeoff. (.4)the accident occurred during the pilot's maiden flight of the homebuilt following completion of construction the preceding week. According to a witness, the pilot took off and climbed 100 feet above the runway surface. During the climb, an airframe component separated from the wing and contacted the wood pusher propeller. A blade separated and all engine power was lost. The airplane then porpoised several times, turned 90 degrees from its runway heading, and collided with the ground in a 45-degree nose-down pitch attitude. A bent plastic (lexan) strip was found about 300 feet downwind of the main wreckage and in close proximity to the separated propeller blade. The strip had been attached to the center section of the wing, forward of the engine, with velcro self-adhesive tape. The adhesive remained attached to the wing, but it failed to adhere to the lexan. In November, 1994, the FAA denied the pilot's last application for an aviation medical certificate because of his cardiovascular condition. Toxicology tests on the pilot revealed the presence of tranquilizers chlordiazepoxide (librium) and diazepam (v alium), and the antidepressant amitriptyline (elavil). Use of these drugs could adversely influence the pilot's mental processes, reaction time, and ability to control the airplane.

As the FAA filed it

CRASHED ON RUNWAY DURING TAKEOFF. (.4)THE ACCIDENT OCCURRED DURING THE PILOT'S MAIDEN FLIGHT OF THE HOMEBUILT FOLLOWING COMPLETION OF CONSTRUCTION THE PRECEDING WEEK. ACCORDING TO A WITNESS, THE PILOT TOOK OFF AND CLIMBED 100 FEET ABOVE THE RUNWAY SURFACE. DURING THE CLIMB, AN AIRFRAME COMPONENT SEPARATED FROM THE WING AND CONTACTED THE WOOD PUSHER PROPELLER. A BLADE SEPARATED AND ALL ENGINE POWER WAS LOST. THE AIRPLANE THEN PORPOISED SEVERAL TIMES, TURNED 90 DEGREES FROM ITS RUNWAY HEADING, AND COLLIDED WITH THE GROUND IN A 45-DEGREE NOSE-DOWN PITCH ATTITUDE. A BENT PLASTIC (LEXAN) STRIP WAS FOUND ABOUT 300 FEET DOWNWIND OF THE MAIN WRECKAGE AND IN CLOSE PROXIMITY TO THE SEPARATED PROPELLER BLADE. THE STRIP HAD BEEN ATTACHED TO THE CENTER SECTION OF THE WING, FORWARD OF THE ENGINE, WITH VELCRO SELF-ADHESIVE TAPE. THE ADHESIVE REMAINED ATTACHED TO THE WING, BUT IT FAILED TO ADHERE TO THE LEXAN. IN NOVEMBER, 1994, THE FAA DENIED THE PILOT'S LAST APPLICATION FOR AN AVIATION MEDICAL CERTIFICATE BECAUSE OF HIS CARDIOVASCULAR CONDITION. TOXICOLOGY TESTS ON THE PILOT REVEALED THE PRESENCE OF TRANQUILIZERS CHLORDIAZEPOXIDE (LIBRIUM) AND DIAZEPAM (V ALIUM), AND THE ANTIDEPRESSANT AMITRIPTYLINE (ELAVIL). USE OF THESE DRUGS COULD ADVERSELY INFLUENCE THE PILOT'S MENTAL PROCESSES, REACTION TIME, AND ABILITY TO CONTROL THE AIRPLANE.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.