CEN10LA334

NTSB accident investigation · Drone Paul E Pulsar III · Carmi, IL · June 21, 2010

Accident · FatalLimited investigationFinal report
Date
June 20, 2010, 20:07 local (Jun 21, 2010, 01:07 UTC)
Place
Carmi, IL
Injuries
1 fatal
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N47PDDrone Paul E Pulsar III
Defining event
Takeoff: Aerodynamic stall/spin
Weather
Visual (VMC) · Day
Status
Completed · report May 11, 2011
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA Springfield FSDO
FAA report
20100620038079A
Case key
76383

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 pilot's failure to maintain adequate airspeed after an aborted landing, which resulted in an aerodynamic stall and impact with terrain.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Performance/control parameters: airspeedAircraft › Aircraft oper/perf/capability · Not attained/maintainedDrone Paul E PULSAR III: 1 caseAll aircraft: 1,681 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The accident airplane was the third airplane in a formation flight of four airplanes that was in the process of landing when the accident occurred. The pilot of the fourth airplane in the flight reported that the airplanes flew for about 40 minutes practicing formation flying before they returned for landing. They did a formation left break using 5-second intervals in order to land in trail. The first two airplanes landed uneventfully and the accident airplane appeared to be flying fast down the runway prior to touching down. The second airplane had not taxied off the runway yet and the accident airplane was quickly approaching. The accident airplane aborted the landing and made a go-around maneuver. It then lifted off the runway abruptly with an unusually nose-high attitude. The pilot of the fourth airplane stated that the accident airplane appeared to stall and roll to the left. The airplane impacted the ground about 300 feet east of the runway. Witnesses on the ground reported that they heard a squeal, like brakes being applied, followed by an increase in engine noise as though the pilot had advanced the throttle. One witness observed the airplane lift from the ground and enter into a left arcing turn before impacting with the terrain.

Factual narrative

On June 20, 2010, at 2007 central daylight time, an experimental, amateur-built Drone Pulsar III, N47PD, sustained substantial damage when it impacted a bean field during an aborted landing from runway 18 (4,001 feet by 75 feet, asphalt) at the Carmi Municipal Airport (CUL), Carmi, Illinois. The commercial pilot received fatal injuries. The 14 Code of Federal Regulations Part 91 personal flight departed from CUL as part of a four airplane formation flight. The flight of four airplanes was in the process of landing at CUL when the accident occurred. Visual meteorological conditions prevailed. No flight plan was filed. The pilot of the fourth airplane in the flight reported that the airplanes were in a practice formation flight. After they departed from CUL, they joined in an echelon formation. He reported that they flew for about 40 minutes before they returned to CUL for landing. They flew over the runway at CUL and did a formation left break using 5-second intervals in order to land in trail on runway 18. The first two airplanes, which were Cessna 172’s, landed uneventfully. The third airplane in the formation was the Pulsar III. The pilot of the fourth airplane, a Piper PA-28, reported that the accident airplane appeared to be fast and was floating down the runway prior to touching down. The second airplane had not taxied off the runway yet and the accident airplane was closing in on its position. The PA-28 pilot reported that the accident airplane aborted the landing and “made a go-around maneuver.” He reported that the Pulsar III lifted off the runway abruptly with an unusually high nose attitude. The PA-28 pilot stated, “When he pitched up, the Pulsar seemed to stall and torque roll to the left.” The airplane impacted the ground about 300 feet east of runway 18. Witnesses on the ground reported that they heard a squeal, like brakes being applied, followed by an increase in engine noise as though the pilot had advanced the throttle. One witness observed the airplane lift from the ground and enter into a left arcing turn before impact with the terrain. The PA-28 pilot reported that the pilots had flown 3 – 4 formation flights in the past. The pilots briefed the flights before takeoff and debriefed when they returned. He reported that the accident pilot had been flying for about 7 – 8 years and had flown the accident airplane to Florida, Michigan, and “all over.” He reported that the accident airplane did not have any problems that he knew of. The 62-year-old pilot held a commercial pilot certificate with single-engine land and airplane instrument ratings. He held a third class medical certificate. His total flight time was about 980 hours with about 327 hours in make and model. The accident airplane was an amateur-built Drone Pulsar III which received its special airworthiness certificate in June 2002. The engine was a 100-horsepower Rotax 912S. The maintenance logbooks indicated that engine and airframe had 327 hours of total time as of May2009. A Federal Aviation Administration (FAA) inspector examined the airplane at the accident site. The flight control surfaces were connected to the control cables. The composite propeller blades were all sheared from the propeller hub. An autopsy of the pilot was conducted on June 21, 2010, at the White County Coroner’s Office Morgue Facility in Carmi, Illinois. The autopsy revealed evidence of multiple blunt force injuries. A Forensic Toxicology Fatal Accident Report was prepared by the FAA Civil Aeromedical Institute. The results of the tests were negative for all substances tested.

Aircraft

Registration
N47PD
Reported as
Drone Paul E Pulsar III
Category
Airplane, amateur-built
Serial number
P97070536
Airframe hours
327
Engine
Rotax 912S, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Drone Paul E
Registered owner
Drone Paul E
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · March 29, 2009
Departed
CUL · Carmi, IL
Destination
CUL · Carmi, IL
Airport
CUL · Carmi Municipal Airport, runway 18, 4,001 × 75 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
62
Injuries
Fatal
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Seat
Left
Toxicology
Performed
Flight hours
980 total · 327 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
190° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
84 °F, dew point 77 °F
Altimeter
29.98 inHg
Observed at
CUL

Docket · 6

The files NTSB released with the investigation on February 1, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.3 MB in all.

FAA reports on this event · 1

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