- Date
- December 7, 2015, 18:27 local (23:27 UTC)
- Place
- Linesville, PA
- Injuries
- 2 fatal
- Damage
- Substantial damage
- Phase of flight
- Approach
- Aircraft
- N541TCTimothy C Williams CCK-1865
- Defining event
- Approach: VFR encounter with IMC
- Weather
- Instrument (IMC) · Night
- Status
- Completed · report July 25, 2016
- Report
- Approved by Office Director
- NTSB office
- Eastern Region Aviation
- Parties
- FAA/FSDO, Cub Crafters
- FAA report
- 20151207022399A
- Case key
- 92413
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The noninstrument-rated pilot's improper decision to attempt a flight under visual flight rules at night in instrument meteorological conditions to an unlit airstrip, which resulted in controlled flight into terrain.
Findings · 5
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.
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 noninstrument-rated pilot not receive a weather briefing before taking off on a personal flight on a dark, moonless night in instrument meteorological conditions. Review of GPS and engine monitor data revealed that, during the last 2 minutes of the 13-minute flight, the airplane descended to 500 ft above ground (agl) level and continued toward the destination airport, which had one turf runway with no lighting. The airplane then overflew the destination airport at 300 ft agl, continued on its course, and then impacted trees about 1 mile beyond the departure end of the airstrip. Examination of the airframe and engine did not reveal any preimpact mechanical malfunctions. The engine monitor data also showed that the engine was operating with cruise power up to the end of the data.
Factual narrative
HISTORY OF FLIGHT On December 7, 2015, at 1827 eastern standard time, an experimental, amateur-built CCK-1865, N541TC, was substantially damaged when it impacted wooded terrain, while maneuvering near Merrys Pymatuning Airport (PA01), Linesville, Pennsylvania. The private pilot and passenger were fatally injured. The airplane was registered to Hartford Aviation LLC and operated by a private individual as a personal flight conducted under the provisions of 14 Code of Federal Regulations Part 91. Night instrument meteorological conditions prevailed and no flight plan was filed for the planned flight to PA01. The flight originated from Greenville Municipal Airport (4G1), Greenville, Pennsylvania, at 1814. According to the manager of the fixed-based-operator at 4G1, the passenger had flown his airplane to 4G1 during the morning of the accident for maintenance and had stayed throughout the day. The passenger had planned to drive home in the evening while maintenance continued, but the accident pilot, who was a friend of the passenger, happened to land at 4G1 about 1700. After visiting for about 1 hour, the accident pilot offered the passenger a flight home in lieu of the passenger driving. The owner of a farm, located about 1 mile north of PA01, stated that she heard an impact sound about the time of the accident, but didn't see anything as it was dark and foggy. Rescue personnel later located the wreckage about 2030 in a wooded area adjacent to the farm. PERSONNEL INFORMATION The pilot held a private pilot certificate, with a rating for airplane single-engine land. He did not possess an instrument rating. His most recent Federal Aviation Administration (FAA) third-class medical certificate was issued on November 17, 2015. At that time, he reported a total flight experience of 600 hours. Review of the pilot's logbook revealed that the most recent entry was dated October 27, 2015. He had accumulated about 575 hours of total flight experience; of which, about 200 hours were in the same make and model as the accident airplane. According to the logbook, the pilot had flown about 38 hours during the 90-day period preceding the accident. All of those hours were flown in the same make and model as the accident airplane. AIRCRAFT INFORMATION The two-seat, high-wing, fixed tailwheel airplane, serial number CCK-1865-0075, was assembled from a kit in 2014 and issued an FAA experimental airworthiness certificate on January 29, 2015, which was its most recent annual condition inspection. It was powered by a Cub Crafters CC-340, 180-horsepower experimental engine, equipped with a Catto two-blade, fixed-pitch wood-core composite propeller. Further review of the aircraft logbook revealed that the most recent oil change was completed on September 30, 2015. At that time, the airframe and engine had accumulated 181 hours of operation. METEOROLOGICAL INFORMATION Northeast Ohio Regional Airport (HZY), Ashtabula, Ohio, was located about 13 miles northwest of the accidentsite at an elevation of 924 feet. The recorded weather at HZY, at 1834, was: wind calm, visibility 7 miles; overcast ceiling at 1,000 feet; temperature 4 degrees C; dew point 2 degrees C, altimeter 30.17 inches Hg. The previous recording at 1753 included an overcast ceiling at 800 feet. Additionally, the National Weather Service in Cleveland, Ohio, had issued a dense fog advisory for the area including the accident site at 1543. There was also an airmen's meteorological information, issued at 1545, valid for instrument meteorological conditions for the accident location. According to the U.S. Naval Observatory, the official sunset at PA01 was 1651 and the end of civil twilight was 1723. Moonrise did not occur until 0340 the following day. There was no record of the pilot receiving a weather briefing from flight service or direct user access terminal. AERODROME INFORMATION Merrys Pymatuning Airport was located at an elevation of 1,203 feet and consisted of one turf runway (4/22), which was 1,815 feet long and 120 feet wide. There was no runway lighting and no instrument approach procedure at the airport. WRECKAGE AND IMPACT INFORMATION A debris path was observed; beginning with freshly cut tree branches from trees that were approximately 50 feet tall. A section of right wingtip was also located at the beginning of the debris path and the path extended approximately 120 feet on a magnetic heading of north to the main wreckage. The main wreckage was inverted at an elevation of 1,115 feet. The right wing separated and the left wing remaining attached to the airframe. The right aileron and right flap separated from the right wing, while the left aileron and left flap remained attached to the left wing. The left wing and empennage were entangled around a tree. The elevator and rudder remained attached to the empennage Control continuity was confirmed from the pilot's cockpit control stick to the elevator attach-point, with one elevator cable remaining attached and the other cable exhibiting a broomstraw separation. Rudder control continuity was confirmed from the rudder pedals to the rudder attach-point, with one rudder cable remaining attached and the other exhibiting a broomstraw separation. The lower left aileron cable remained attached from the control stick to its left aileron attach-point. The lower right aileron cable remained attached from the pilot's control stick and right aileron attach-point; however, it exhibited two broomstraw separations along the length of the cable. The upper right aileron cable remained attached from the right aileron attach-point to cockpit turn-buckle. The upper left aileron cable exhibited a broomstraw separation about 6 inches from the turn-buckle. Measurement of the elevator trim jackscrew corresponded to an approximate neutral to nose-up trim position. The cockpit was crushed, but both four-point harnesses remained intact. The magneto switch remained in the both position and the fuel selector was positioned toboth fuel tanks. The throttle and carburetor heat control levers were in the forward position while the mixture control was in the lean position. The primer control was in and locked. The engine remained attached the fuselage. The two-blade wooden and composite propeller separated from the hub and shattered. The engine sustained impact damage to the underside. The carburetor was impact damage and approximately half of it was not recovered. Fuel was found in the gascolator and consistent in odor and color to 100-low-lead aviation gasoline. The propeller hub was rotated by hand and continuity was confirmed to the rear accessory section of the engine. A GPS, video recorder, and engine monitor were recovered from the wreckage and forwarded to the NTSB Recorder Laboratory, Washington, DC, for data download. The video recorder's memory card was fractured and no data were recovered; however, data from the GPS and engine monitor were successfully downloaded and plotted. Review of the data plots revealed that the airplane traveled north on a course to PA01, about 2,000 feet above ground level (agl). During the last 2 minutes of data, the airplane descended to approximately 500 feet agl, and continued north toward PA01. The airplane flew over PA01 about 300 feet agl and continued north for 1 mile, where the accident site was located. The last GPS target was recorded at 18:27:18, about .7 mile south of the accident site, indicating an altitude of 400 feet agl. Review of engine data revealed that the engine rpm was at 2,090 at the end of the data. MEDICAL AND PATHOLOGICAL INFORMATION An autopsy was performed on the pilot by the Crawford County Coroner's Office, Saegertown, Pennsylvania, on December 9, 2015. The autopsy report noted the cause of death as "blunt force trauma." Toxicological testing was performed on the pilot by the FAA Bioaeronautical Science Research Laboratory, Oklahoma City, Oklahoma. The results were negative for alcohol and drugs.
Aircraft
- Registration
- N541TC
- Reported as
- Timothy C Williams CCK-1865 (NO SERIES)
- Category
- Airplane, amateur-built
- Serial number
- CCK-1865-0075
- Built
- 2014
- Airframe hours
- 181
- Engine
- Cub Crafters O-340, 180 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Condition · January 29, 2015 · 181 hours before
- Departed
- 4G1 · Greenville, PA
- Destination
- PA01 · Linesville, PA
- Airport
- PA01 · Merrys Pymatuning Airport, runway 4, 1,815 × 120 ft, grass/turf
- Equipment
- Data recorder, Handheld GPS, Video recording device
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
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, With waivers/limitations
- Seat
- Front
- Restraint
- 4-point
- Toxicology
- Performed
- Flight hours
- 600 total · 200 in this make and model · 38 in the last 90 days
Weather
- Conditions
- Instrument (IMC) · Night
- Wind
- Calm
- Visibility
- 7 statute miles
- Lowest ceiling
- 1,000 ft overcast
- Temperature
- 39 °F, dew point 36 °F
- Altimeter
- 30.17 inHg
- Observed at
- HZY, 13 nm away
Docket · 15
The files NTSB released with the investigation on July 6, 2016, on NTSB’s docket system: statements, records, photos and specialists’ reports. 7.1 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.