LAX07LA032

NTSB accident investigation · Kolb MK III · Paulden, AZ · November 13, 2006

Accident · FatalLimited investigationFinal report
Date
November 13, 2006, 09:20 local (16:20 UTC)
Place
Paulden, AZ
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N2031SKolb MK III
Weather
Visual (VMC) · Day
Status
Completed · report January 31, 2008
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20061113024619A
Case key
64861

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

failure of the pilot to maintain an adequate airspeed that led to a stall/spin.

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
Airspeed - not maintainedPilot in commandCause
Stall/spin - encounteredPilot in command
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - ground

Analysis

A witness to portions of the accident sequence observed the airplane perform several touch-and-go takeoffs and landings. On the accident portion of the flight, he saw the airplane takeoff to the west, and then he turned away. He then heard the engine "revving" followed by silence. When he turned back, he saw that the airplane had impacted the ground in a steep nose down attitude. The two-seat experimental light sport airplane came to rest about 200 yards north of the departure end of the runway. The airplane's wings, cockpit, and tail section were all structurally damaged. FAA inspectors examined the wreckage and noted no mechanical problems with the airframe or engine. They further opined that the airplane appeared to have stalled and spun to the ground.

Factual narrative

History of flight

On November 13, 2006, about 0920 mountain standard time, an experimental light sport Kolb MK III, N2031S, impacted flat desert terrain in a nose down attitude about 200 yards north of Pilots Rest Airport (AZ57), Paulden, Arizona. The newly certificated light sport pilot/owner and the private pilot passenger were fatally injured. The airplane was destroyed. Visual meteorological conditions prevailed for the local area flight, and no flight plan had been filed.

A friend of the pilot was a partial eyewitness. A deputy from Yavapai County Sheriff's Department interviewed the friend. He stated that he watched the airplane as it did touch-and-go takeoffs and landings. He then saw the airplane takeoff to the west, and turned away. He then heard a loud revving noise followed by silence. When he looked back toward the west, he observed the downed airplane.

Federal Aviation Administration (FAA) inspectors responded to the accident site and examined the airplane. They found no mechanical anomalies with the airframe or engine. According to the FAA inspector, it appeared the airplane stalled and spun to the ground.

Personnel information

Pilot 1

An examination of the pilot's personal logbook indicated that he had taken, and passed satisfactorily, the sport pilot practical test on October 8, 2006. He had been issued a third-class medical certificate on February 22, 2005. The following restrictions were noted on his medical certificate: must wear corrective lenses for near and distant vision; valid for student pilot purposes only; not valid for any class after.

According to the pilot's logbook he had an estimated total flight time of 270 hours. He logged an estimated 12 hours in the last 90 days. His personal logbook recorded no flight hours in the last 30 days. He had an estimated 130 hours in the accident make and model.

Pilot 2

A review of the FAA airman records revealed the pilot held a private pilot certificate with an airplane single engine land and instrument airplane ratings. At the time of the accident, the pilot's medical certificate was pending, with March 16, 2006, as the medical date. On his last medical application, the pilot reported a total time of 770 hours.

Aircraft information

The airplane was a single engine tandem Kolb MKIII, serial number P1134. A Special Airworthiness Certificate was issued on April 15, 2006, along with it's operating limitations. Under Part A of the Special Airworthiness Certificate, entitled CATEGORY/DESIGNATION, it stated that the airplane was experimental, with the PURPOSE stated as "Operating Light Sport Aircraft." On February 16, 2006, the airplane was issued a Certificate of Aircraft Registration (A/C Form 8050-3(10/2003) by the FAA. An entry in the airplane logbook under the year 2006, showed the Experimental Light Sport Aircraft Special Airworthiness certificate.

The airplane was equipped with a Rotax 582 engine, serial number 4017451.

Airport information

Information obtained from www.airnav.com indicated that Pilots Rest Airport is a privately owned airport. It has a single runway oriented along an east/west heading (09/27). The runway length is 5,250 feet wide by 75 feet wide; composed of a gravel surface.

Medical and pathological information

The Yavapai County Office of the Medical Examiner performed the autopsies of both pilot's on November 14, 2006.

Pilot 1

The FAA Forensic Toxicology Research Team (CAMI), Oklahoma City, Oklahoma, performed a toxicological analysis from samples obtained during the autopsy. The results of the analysis of the specimens were negative for carbon monoxide, cyanide, volatiles, and tested drugs.

Pilot 2

The FAA Forensic Toxicology Research Team (CAMI), performed a toxicological analysis from samples obtained during the autopsy. The results of the analysis of the specimens were negative for volatiles, and tested drugs. The blood samples submitted by the Yavapai County Medical Examiner for carbon monoxide and cyanide testing were not stable, and the tests were not performed.

Aircraft

Registration
N2031S
Reported as
Kolb MK III
Category
Airplane
Serial number
P1134
Airframe hours
163.5
Engine
Rotax 582, 64 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
David A. Pelletier
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · February 1, 2006
Departed
AZ57 · Paulden, CA
Destination
AZ57 · Paulden, AZ
Airport
AZ57 · Pilots Rest Airport, runway 27, 5,250 × 75 ft, gravel

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
Age
68
Injuries
Fatal
Certificate
Sport Pilot
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
October 1, 2006
Seat
Front
Toxicology
Performed
Flight hours
270 total · 130 in this make and model · 12 in the last 90 days
Role
Pilot
Age
54
Injuries
Fatal
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Unknown, Unknown
Seat
Rear
Toxicology
Performed
Flight hours
770 total

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
43 °F, dew point 27 °F
Altimeter
30.17 inHg
Observed at
PRC, 17 nm away

FAA reports on this event · 1

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