NTSB Factual Report

HISTORY OF FLIGHT

On October 23, 2008, about 2134 central daylight time, a Piper PA-30, N7510Y, registered to and operated by a private individual, crashed in a corn field near Selmer, Tennessee. Night instrument meteorological conditions (IMC) prevailed and no flight plan was filed for the 14 Code of Federal (CFR) Part 91 personal flight from Searcy Municipal Airport (SRC), Searcy, Arkansas, to Roscoe Turner Airport (CRX), Corinth, Mississippi. The airplane was substantially damaged by impact and the certificated private pilot was killed. The time of departure from SRC was estimated to be between 1835 and 1845.

There was no record of any weather briefing with Lockheed Martin Automated Flight Service Station (LM AFSS) or either Direct User Access Terminal (DUAT) vendor for the intended flight. Additionally, there was no record of contact with any Federal Aviation Administration (FAA) air traffic control (ATC) facility during the flight.

According to a fuel receipt, the pilot purchased fuel at Durango-La Plata County Airport (DRO), Durango, Colorado, at 1208 local time. The airplane later arrived at Hutchinson County Airport (BGD), Borger, Texas, and while there, all four fuel tanks were filled. According to the refueler, he recognized the airplane from a week earlier, when the airplane arrived with a landing gear problem. He asked the pilot if the landing gear was working properly and the pilot responded, "yes." He then asked the pilot about the en route weather, and the pilot stated that, "…it was not too good, but that he had radar. He then departed at about 4:00 p.m."

The airplane subsequently proceeded to Searcy Municipal Airport, where the pilot purchased about 18 gallons of fuel. Payment for the fuel by credit card occurred about 1828. A friend of the pilot reported going to the airport between approximately 1830 and 1845 to see him, but when the friend arrived, the airplane had already departed. There were no known witnesses who saw the airplane depart.

A witness, located approximately 1.4 nautical miles north-northeast of the crash site, reported that about 2130, an airplane flew low over her house at 100 feet above ground level (agl) in a south or southwesterly direction. It was raining at the time, but not lightning, and she could not see stars or the moon. Additionally, a pilot-rated witness reported that IMC conditions prevailed in the area due to clouds and fog.

There were no known witnesses to the accident; the airplane crashed in a plowed corn field and the wreckage was spotted the next morning.

PERSONNEL INFORMATION

The pilot, age 71, held a private pilot certificate with ratings for airplane single engine land and multi-engine land, issued December 21, 1982. His latest FAA third class medical certificate was issued October 8, 2004. For a person over the age of 40, a third class medical certificate expires the 24th month after the month of the date of examination. The pilot listed 3,650 hours of total flight time on the application for his latest medical certificate.

The pilot was not instrument rated. The pilot's son reported that his father flew instrument flight rules (IFR) “a lot’ and he (his father), felt comfortable flying in instrument meteorological conditions, but would not fly an approach to minimums.

AIRCRAFT INFORMATION

The airplane was manufactured in 1964, by Piper Aircraft, Inc., as model PA-30, and was designated serial number 30-574. It was powered by two Lycoming IO-320-B1A 160-horsepower engines equipped with Hartzell constant speed propellers. It was also equipped with a two-axis Century III autopilot flight system.

Review of the maintenance records revealed the airplane was last inspected in accordance with an annual inspection on January 18, 2007. Federal regulations (14 CFR Part 91.409) indicate no person may operate an aircraft unless within the preceding 12 calendar months, it has had an annual inspection in accordance with (IAW) 14 CFR Part 43 and been returned to service. At the time of the accident, the airplane had operated for approximately 47 hours since the inspection.

METEOROLOGICAL INFORMATION

A friend of the pilot reported that the pilot knew about the weather conditions in the area of the destination airport before his initial departure. The pilot advised him that he may have to approach the destination airport from the north. The friend asked the pilot to spend the night but the pilot stated that he wanted to get home.

A special surface observation weather report (SPECI METAR) recorded at Robert Sibley Airport (SZY), Selmer, Tennessee, at 1956, indicated the wind was from 290 degrees at 7 knots, the visibility was 9 statute miles, a few clouds existed at 500 feet, and broken clouds existed at 4,100 feet. The temperature and dew point were 12 and 11 degrees Celsius respectively, and the altimeter setting was 30.18 inches of mercury (inHg). The accident site was located approximately 7 nautical miles southwest of SZY.

A SPECI METAR recorded at SZY at 2044, indicated the wind was variable at 5 knots, the visibility was 3 statute miles, and broken clouds existed at 400 feet. The temperature and dew point were 11 and 10 degrees Celsius respectively, and the altimeter setting was 30.20 inHg.

A SPECI METAR recorded at SZY at 2129, indicated the wind was calm, and the visibility was 4 statute miles. Broken clouds existed at 500 feet and overcast clouds existed at 1,400 feet. The temperature and dew point were each 9 degrees Celsius, and the altimeter setting was 30.20 inHg.

AIRPORT INFORMATION

Roscoe Turner Airport had one asphalt runway designated 18/36. It had an instrument landing system (ILS) or localizer approach to runway 18, and area navigation (RNAV) or global positioning system (GPS) approaches to runways 18 and 36. The airport also had an automated weather observing system (AWOS)-3.

WRECKAGE AND IMPACT INFORMATION

The airplane crashed in the southwest corner of a rectangular, north/south-oriented, plowed corn field; the crash site was located approximately 12 nautical miles north of the destination airport.

The airplane came to rest upright on a magnetic heading of 278 degrees, approximately 247 feet from the first observed ground contact location. The energy path was oriented on a magnetic heading of 184 degrees. Debris along the energy path between the first ground contact location and the resting point of the wreckage consisted of the nose landing gear door and shimmy damper, outside air temperature (OAT) gauge, right aileron, DME antenna, left propeller with fractured crankshaft flange, 3M Weather Stormscope avionic equipment, and numerous IFR charts and some VFR charts.

Ground scars were not continuous from the first point of ground contact to the resting point of the airplane. The first ground scar measured approximately 72 feet in length; the pitot mast was noted near the end of this ground scar. The second ground scar began approximately 40 feet from the end of the first ground scar and the OAT gauge and nose landing gear door and shimmy damper were noted in this location. The left propeller was found on the right side of the energy path approximately 192 feet from the first ground contact location and the right aileron was noted on the left side of the energy path approximately 201 feet from the first ground contact location.

The airplane’s nose section and the cockpit to the pilot's seat were destroyed. The right side of the fuselage in the cockpit and cabin area was structurally opened along the length and was displaced (rolled) to the left approximately 25 degrees. The right engine with attached propeller remained partially attached to the wing. The right horizontal stabilator was bent up approximately 10 degrees beginning about midspan, while no appreciable damage was noted to the left side of the horizontal stabilator, vertical stabilizer, or rudder.

Stabilator and rudder flight control cable continuity was confirmed from each attach point near the control surface to the cockpit attach point. The stabilator trim tab was found positioned 4.5 degrees tab trailing edge up, which is 50 percent of nose down trim setting; however, the trim could have been moved during the crash sequence. The rudder trim was neutral.

The left wing, vertical stabilizer, horizontal stabilator, rudder, stabilator trim tab, and left engine remained attached. The lower surface of the left wing was not visually inspected; however, the upper surface of the left wing exhibited chordwise compression wrinkles outboard of the inboard end of the aileron.

The flap and aileron remained attached and both exhibited compression wrinkles on the upper surfaces. The outboard end of the flap was displaced up approximately 17 degrees, and the outboard portion of the aileron was displaced up approximately 70 degrees. The aileron control cable was continuous from control surface to the chain in the cockpit, while the balance cable exhibited tension overload at the roll servo location; no evidence of preexisting fracture of the cable strands was noted.

The left main fuel tank was empty, and the auxiliary fuel tank contained an estimated 7.5 gallons of blue colored fuel consistent with 100 low lead (100LL); both fuel caps were secure. No contaminants were noted in the recovered sample from the auxiliary fuel tank when checked with water finding paste. The fuel line from firewall fitting to engine driven fuel pump had residual fuel, and the main tank fuel supply line from tank to selector was damaged in wing root area. The auxiliary fuel tank supply line was intact from tank to selector valve, and the fuel line from the selector to the engine was intact. Residual fuel was found in the flexible fuel line from the firewall fitting to the hard line for fuel pressure at the distributor valve.

During removal of the left engine, a mud dauber nest was found clinging to air filter, and residual fuel was noted in the flexible fuel supply line to the engine driven fuel pump. The fuel strainer contained uncontaminated 100LL fuel.

The right wing was fractured at the wing root and also at the outboard end of the flap. The structure and skin of the right wing beginning about midspan of the flap was displaced up approximately 30 degrees and displaced aft approximately 35 degrees.

The right main and auxiliary fuel tanks were empty and both fuel caps were secure. The fuel supply lines from tank to selector were fractured at the wing root. The flap remained attached, but the aileron was separated. The right engine remained partially attached to the wing.

The right main landing gear was found in the extended position; however, the hydraulic line was broken. The flexible fuel supply line from the firewall fitting to engine driven fuel pump was moist with fuel. Inspection of the fuel strainer revealed the drain hose was plugged by dirt. After removal of the dirt, a small amount of water and debris was found in the strainer which appeared consistent with the open lines. Most of the liquid found in the strainer was consistent in color and smell to 100LL and no other evidence of contamination was noted. Rust was noted inside the strainer.

The aileron control cable was secure to the bellcrank at the control surface and continuous to the wing root where it displayed evidence of tensile overload failure. The remainder of the control cable was continuous to the aileron control chain. The balance cable was connected at the bellcrank near control surface and continuous to the center fuselage section where it displayed evidence of tensile overload. The aileron control rod was separated at the aileron rod end. The engine with attached propeller was displaced inboard approximately 10 inches. During removal of the engine, the air induction filter was noted to be dirty.

Examination of the cockpit revealed that the instrument panel was partially separated and found inverted. The throttle quadrant remained attached by the control cables. Both throttle controls were at a low power setting, both propeller controls were in the feathered position, and both mixture controls were in the idle cutoff position; however, they could have been moved during the crash sequence.

Stretching of five of eight filaments of the pilot’s flight instruments post lights was noted. No stretching of the filaments of the gear down and locked light, gear in transit light, or gear unsafe light bulb was noted. The landing gear emergency gear extension cover was in place and secure, and the emergency extension handle was in place and secure. Examination of the landing gear electric motor and actuator revealed the position of the jackscrew was consistent with the landing gear being retracted. The landing gear selector handle was broken.

The airspeed indicator needle indicated approximately 140 miles-per-hour. All magnetic switches of the autopilot console (pitch, roll, heading, and altitude) were in the down or off position, and the pitch command wheel was in a slight nose down position. The pitch servo effort meter (trim) which indicates the position of the pitch command wheel with relation to the attitude being flown depicted a nearly level position. The horizontal situation indicator (HSI) indicated the magnetic heading was approximately 320 degrees, the omnibearing selector (OBS) was set to approximately 215 degrees, and the course deviation indicator (CDI) was centered. The "HDG" and "GS" flags were displayed. The No. 2 very high frequency omni-directional range (VOR) receiver OBS was set to 065 degrees, the "NAV" and "GS" flags were displayed. The CDI and glideslope needles were displaced to the right and down, respectively.

Examination of the left and right fuel selector valves revealed that the left valve was between the auxiliary and main fuel tank positions, while the right valve was in the auxiliary fuel tank detent position. No impact damage was noted to either handle, and the mechanical linkage of both were connected at both ends.

Examination of the vacuum gauge revealed that the glass was broken, and impact damage to the faceplate near the left button was noted. The left button was behind the faceplate and the right button was extended. Additionally, the needle was off scale low. The attitude indicator, directional gyro, altimeter, vacuum gauge, two communication transceivers, two navigation receivers, a panel mounted global positioning system (GPS) receiver, and a portable flight computer were retained for further examination.

Examination of both engines revealed crankshaft, camshaft, and valve train continuity. The engine system components pertaining to fuel, ignition, and lubrication of both engines revealed no evidence of preimpact failure or malfunction. Examination of the fuel system components for both engines revealed fuel in the fuel lines, and the fuel system components consisting of the engine-driven fuel pump, servo fuel injector, and residual fuel was also noted at the distributor valve.

The driven shaft for the left engine vacuum pump was sheared, and one vane inside the pump was noted to be fractured during the initial examination. The left vacuum pump and fractured shaft were retained for further examination. The right engine vacuum pump rotor, vanes, and driven shaft were not damaged.

Examination of the left propeller revealed that a portion of the crankshaft flange remained attached to the propeller flange. The fracture surface of the crankshaft exhibited 45-degree shear lips. Both blades remained secured to the propeller hub. One blade exhibited a slight forward bend of approximately 10 to 15 degrees beginning about midspan, and polishing of the leading edge was noted. The blade exhibited leading edge twisting towards low pitch, and a nick on the leading edge of the blade near the blade tip. The other blade was free to rotate in the hub and was bent aft approximately 35 degrees. The leading edge was twisted towards low pitch, and polishing of the leading edge was noted about midspan.

Examination of the right propeller revealed that both blades remained secured to the propeller hub. One blade was bent aft approximately 90 degrees beginning about 1/3 the span, and exhibited a 3/8 inch gouge on the trailing edge of the blade near the blade

NTSB Probable Cause

The pilot's failure to avoid terrain during night instrument meteorological conditions.