CHI07LA157

NTSB accident investigation · Purvis Rans S6S · Newark, IL · May 28, 2007

Accident · FatalLimited investigationFinal report
Date
May 27, 2007, 19:00 local (May 28, 2007, 00:00 UTC)
Place
Newark, IL
Injuries
1 fatal
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N743RPPurvis Rans S6S
Weather
Visual (VMC) · Day
Status
Completed · report June 30, 2008
Report
Approved by Office Director
Parties
FAA
FAA report
20070527009599A
Case key
65875

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 control of the airplane which resulted in inadequate airspeed and a subsequent stall. Contributing to the accident were the pilot's improper installation of the altimeter and airspeed indicator which rendered them inoperative and his lack of experience in the airplane.

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
Flight/nav instruments,altimeter - inoperativeFactor
Maintenance,installation - improperPilot in commandFactor
Flight/nav instruments,airspeed indicator - inoperativeFactor
Aircraft control - not maintainedPilot in commandCause
Lack of total experience in type of aircraftPilot in commandFactor
Airspeed - inadequatePilot in commandCause
Remedial action - not performedPilot in commandCause
Stall - inadvertentPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - ground

Analysis

The sport pilot purchased the airplane a month prior to the accident. Witnesses reported seeing the airplane takeoff. They reported that just after liftoff, the nose of the airplane went straight up and the airplane climbed to an altitude of 100 to 200 feet above the runway. One witness stated the airplane was in a 90-degree nose up attitude. They stated the airplane then drifted to the left and stalled. The witnesses reported the pilot made no visible attempt to recover from the stall. The airplane impacted the terrain off the left side of the runway. Examination of the wreckage estabilshed engine and flight control continuity. The pilot contacted the aircraft builder shortly before the accident stating that he did not like the digital instruments that were installed in the airplane. The pilot discussed installing airspeed and altimeter gauges. Inspection of the airplane revealed that airspeed and altimeter gauges had been installed in the airplane. The altimeter was installed, but had not been connected to the static port. The line connection on the back of the altimeter was capped with a plastic plug. The airspeed indicator was connected to the static port only. The instrument panel cutouts were found in the pilot's hangar. The pilot's logbook showed he had 155 hours of ultralight flight time and 42 hours of flight time in light sport airplanes. The logbook showed he had a total of 1.5 hours of flight time in the accident airplane.

Factual narrative

History of flight

On May 27, 2007, at 1900 central daylight time, an amateur-built sport Purvis Rans S6S, N743RP, collided with the terrain following a loss of control during takeoff from a grass airstrip at Cushing Field (0C8), Newark, Illinois. The sport pilot was fatally injured. The airplane was substantially damaged. The 14 Code of Federal Regulations Part 91 personal flight was operating in visual meteorological conditions without a flight plan. The flight was originating at the time of the accident.

Witnesses stated the pilot taxied the airplane to runway 18 and performed a run-up prior to applying what sounded like full power for takeoff. They stated that just after liftoff, the nose of the airplane went straight up and the airplane climbed to an altitude of 100 to 200 feet above the runway. One witness stated the airplane was in a 90-degree nose up attitude. They stated the airplane then drifted to the left and stalled. The witnesses reported the pilot made no visible attempt to recover from the stall. The witnesses lost sight of the airplane as it disappeared behind a hangar.

Personnel information

The pilot, age 59, held a sport pilot certificate. This certificate was issued on January 3, 2007. The pilot's logbook indicated he received a tail wheel endorsement on May 2, 2007. The pilot had a total flight time of approximately 197 hours, of which 155 hours were in ultralights and 42 hours were in light sport airplanes. The pilot's logbook showed he had a total of 1.5 hours of flight time in the accident airplane.

Aircraft information

The amateur-built airplane was a Purvis Rans S6S, serial number 02041551-S. The airplane was a single-engine, two-seat, high-wing airplane with conventional landing gear. A 100-horsepower, Rotax 912S UL engine, serial number 5644358, was installed in the airplane.

Maintenance records indicated the date of manufacture of the airplane was May 2, 2006. The builder reported that he flew the first 10 hours on the airplane.

The airplane was still registered to the builder; however, a Bill of Sale was found in the pilot's car showing that he purchased the airplane in April 2007. The pilot's logbook showed that he towed the airplane from Menominee, Wisconsin, to Newark, Illinois, on May 5, 2007. The last entry in the pilot's logbook, dated May 20, 2007, stated "hobbs end 16.3." Inspectors from the Federal Aviation Administration (FAA) who examined the wreckage stated the airplane total time at the time of the accident was 17.8 hours.

The aircraft builder reported the pilot contacted him shortly before the accident stating that he did not like the digital instruments that were installed in the airplane. The pilot discussed installing airspeed and altimeter gauges. The owner stated that he told the pilot that he should talk to someone else regarding the installation.

Meteorological conditions

The closest weather reporting facility was located at the Aurora Municipal Airport (ARR), Aurora, Illinois, approximately 18 miles north-northeast of Newark, Illinois. At 1852, the weather was recorded as: Wind from 280 degrees at 8 knots, visibility 9 miles, scattered clouds at 20,000 feet, temperature 21 degrees Celsius, dew point 9 degrees Celsius, altimeter 30.08 inches of mercury.

Wreckage and impact information

The wreckage was located southeast of the south end of runway 18 at 0C8.

The bottom surface of the airplane from the propeller rearward to just aft of the seats was crushed upward. The top engine cowling was popped open. The windshield was separated from the lower attach points and was pushed upward. Both wooden propeller blades were shattered. The left wing was bent upward approximately 60 degrees at the wing root and the wing strut was pulled away from the fuselage attach point. The aft fuselage was primarily intact as was the empennage. The right wing was intact. Both main landing gear were separated from the airplane.

Inspectors from the FAA examined the wreckage. The inspectors verified engine continuity. The propeller was free to turn and spark was achieved on all four spark plugs. Flight control continuity was established to the elevator, rudder, and right aileron. The left aileron control tube was fractured at the wing root where the wing was bent. The cockpit elevator trim indicator showed one unit of nose up trim was applied. The elevator trim tab surface was in a slight tab-down position.

Inspection of the airplane revealed that airspeed and altimeter gauges had been installed in the airplane. The altimeter was installed, but had not been connected to the static port. The line connection on the back of the altimeter was capped with a plastic plug. The airspeed indicator was connected to the static port only. The instrument panel cutouts were found in the pilot's hangar.

Medical and pathological information

An autopsy of the pilot was performed by the LaSalle County Coroner's Office on May 29, 2007. The final autopsy report listed the cause of death as "Blunt Head and Chest Trauma."

The FAA's Civil Aerospace Medical Institute performed forensic toxicology on specimens from the pilot. Those results indicated:

0.164 (ug/ml, ug/g) Citalopram detected in Blood

Citalopram present in Urine

0.049 (ug/ml, ug/g) N-Desmethylcitalopram in Blood

N-Desmethylcitalopram present in Urine

DI-N- N-Desmethylcitalopram detected in Urine

DI-N- N-Desmethylcitalopram NOT detected in Blood

Citalopram is a prescription antidepressant; also know by the trade name Celexa.

Aircraft

Registration
N743RP
Reported as
Purvis Rans S6S
Category
Airplane, amateur-built
Serial number
02041551-S
Airframe hours
18
Engine
Rotax 912S UL, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Richard B. Moroniak
Registered owner
Ronald E. Purvis
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · August 1, 2006 · 18 hours before
Departed
0C8 · Newark, IL
Destination
0C8 · Newark, IL
Airport
0C8 · Cushing Field, runway 18, 2,831 × 180 ft, grass/turf

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
59
Injuries
Fatal
Certificate
Sport Pilot
Medical
Sport pilot
Last flight review
January 1, 2007
Seat
Left
Toxicology
Performed
Flight hours
197 total · 2 in this make and model · 172 as pilot in command · 30 in the last 90 days · 7 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
280° at 8 knots
Visibility
9 statute miles
Lowest ceiling
None
Temperature
70 °F, dew point 48 °F
Altimeter
30.07 inHg
Observed at
ARR, 17 nm away

Docket · 14

The files NTSB released with the investigation on June 3, 2008, on NTSB’s docket system: statements, records, photos and specialists’ reports. 6.1 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.