Socata TBM-700

DGW Enterprises

Fiorenzo Valli

Renato Joner

After landing at Brasília-Nelson Piquet Airport, the single engine airplane went out of control and veered off runway. It went down into a ravine and came to rest into trees. All five occupants evacuated safely while the aircraft was destroyed. The pilot reported he encountered strong winds upon landing.

Kevin C. Scott

On August 20, 2021, about 1440 eastern daylight time, a Socata TBM 700A airplane, N700DT, was destroyed when it was involved in an accident near Urbana, Ohio. The pilot sustained fatal injuries. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. Preliminary air traffic control information revealed the airplane was en route from the Erie Ottawa Airport (PCW), Port Clinton, Ohio, to the Cincinnati Municipal Airport (LUK), Cincinnati, Ohio. The airplane departed runway 9 at PCW and climbed to flight level 200 before beginning to descend. The airplane was southbound, descending to 12,000 ft mean sea level (msl), and established communications with the assigned terminal radar approach control controller. The controller cleared the pilot to descent to 10,000 ft msl and proceed direct to LUK. While descending through 12,100 ft msl, the airplane entered a left turn. The controller observed the left turn and asked the pilot if everything was alright; there was no response from the pilot. Radar contact was subsequently lost with the airplane. The controller’s further attempts to establish communications were unsuccessful. A witness, located about 2 miles south of the accident location, stated that he observed the airplane at a high altitude in a nose-dive descent toward the terrain. He reported the airplane was not turning or spinning; it was headed straight down. The witness observed no signs of distress, such as smoke, fire, or parts coming off the airplane, and he stated the airplane’s engine was at full throttle. The witness lost sight of the airplane as it descended behind some trees. The accident site was located 1.3 miles northwest of the last radar contact. The accident site showed the airplane impacted trees, two powerlines, and the terrain in a left-wing low attitude. The initial ground scar, located in a residential yard, contained separated components of the left wing. The airplane crossed a highway, struck trees and a ditch, and then continued into mature potato and soybean fields. The airplane wreckage was scattered at a distance of about 2,050 ft along a measured magnetic heading of 275°. According to acquaintances of the pilot, the pilot purchased the airplane about 9 days before the accident. Following the purchase, the pilot and a flight instructor completed several hours of ground school and 15.5 hours of dual instruction in the airplane.

N700AQ LLC

On October 3, 2019, about 0858 eastern daylight time, a Socata TBM 700 airplane, N700AQ, collided with terrain while on an instrument approach to Capital Region International Airport (LAN), Lansing, Michigan. The commercial pilot, pilot-rated passenger, and 3 passengers were fatally injured. The remaining passenger sustained serious injuries. The airplane was substantially damaged. The airplane was owned by N700AQ LLC and operated under Title 14 Code of Federal Regulations (CFR) Part 91 on an instrument flight rules (IFR) flight plan. Day instrument meteorological conditions prevailed at the accident site. The cross-country business flight departed Indy South Greenwood Airport (HFY), Greenwood, Indiana, at 0800. According to automatic dependent surveillance-broadcast (ADS-B) data that was transmitted from the airplane to Federal Aviation Administration (FAA) air traffic control (ATC), the flight departed runway 19 at HFY and turned northeast toward MAREO intersection where it turned north toward LAN. The airplane subsequently climbed to flight level 190 (19,000 ft pressure altitude). At 0834:24, the flight entered a cruise descent from flight level 190 and was progressively cleared down to 3,000 ft mean sea level (msl). According to ATC communications, the pilot was provided radar vectors to join the localizer for the instrument landing system (ILS) runway 10R approach at LAN. At 0853:03, the approach controller stated, "TBM zero alpha quebec, five miles from FAMLI, turn right, ah, right heading zero seven zero, maintain three thousand until established on the localizer, cleared the ILS one zero right." The pilot responded, "Zero seven zero, ah, we're cleared for the ILS ten right into, ah, Lansing." The ADS-B data indicated the airplane entered a right turn and joined the localizer inbound. At 0854:27, the approach controller stated, "TBM zero alpha quebec, contact Lansing tower one one niner point niner, good day." The pilot responded, "One nineteen ninety, seven hundred alpha quebec." At 0855:29, the airplane crossed over the outer marker (FAMLI) at 2,302 ft msl and continued to descend on the glideslope while established inbound on the localizer toward runway 10R. The airplane had a calculated true airspeed of 168 knots when it crossed over the outer marker. Between 0855:29 and 0857:45, the airplane continued to decelerate from 168 knots to 64 knots. At 0854:36, the pilot established contact with the Lansing tower controller and reported being established on the ILS Runway 10R instrument approach. At 0854:39, the tower controller stated, "Seven zero zero alpha quebec, Lansing, ah, tower, the winds are calm, one zero right cleared to land." The pilot responded, "Cleared to land, ah, ten right, seven hundred alpha quebec." There were no additional communications received from the pilot. At 0858:13, the tower controller attempted to contact the pilot over the tower frequency without success. A passenger was seriously injured and all five other occupants were killed.

William E. Patterson

The commercial pilot was conducting an instrument approach following a 3.5-hour cross-country instrument flight rules (IFR) flight in a single-engine turboprop airplane. About 1.6 miles from the runway threshold, the airplane began a climb consistent with the published missed approach procedure; however, rather than completing the slight left climbing turn toward the designated holding point, the airplane continued in an approximate 270° left turn, during which the airplane's altitude varied, before entering a descending right turn and impacting terrain. Tree and ground impact signatures were consistent with a 60° nose-low attitude at the time of impact. No distress calls were received or recorded from the accident flight. A postimpact fire consumed a majority of the cockpit and fuselage. Weather information for the time of the accident revealed that the pilot was operating in IFR to low IFR conditions with gusting surface winds, light to heavy snow, mist, cloud ceilings between 700 and 1,400 ft above ground level with clouds extending through 18,500 ft, and the potential for low-level wind shear and clear air turbulence. The area of the accident site was under AIRMETs for IFR conditions, mountain obscuration, moderate icing below 20,000 ft, and moderate turbulence below 18,000 ft. In addition, a winter storm warning was issued about 6 hours before the flight departed. Although the pilot received a weather briefing about 17 hours before the accident, there was no indication that he obtained updated weather information before departure or during the accident flight. Examination of the airframe and engine did not reveal any preimpact anomalies that would have precluded normal operation; however, the extent of the fire damage precluded examination of the avionics system. The airplane was equipped with standby flight instruments. An acquaintance of the pilot reported that the pilot had experienced an avionics malfunction several months before the accident during which the airplane's flight display went blank while flying an instrument approach. During that occurrence, the pilot used ForeFlight on his iPad to maneuver back to the northeast and fly the approach again using his own navigation. During the accident flight, the airplane appeared to go missed approach, but rather than fly the published missed approach procedure, the airplane also turned left towards to northeast. However, it could not be determined if the pilot's actions were an attempt to fly the approach using his own navigation or if he was experiencing spatial disorientation. The restricted visibility and turbulence present at the time of the accident provided conditions conducive to the development of spatial disorientation. Additionally, the airplane's turning flight track and steep descent profile are consistent with the known effects of spatial disorientation.

Sky West Aviation

The single engine aircraft departed Yao Airport at 1157LT on a leisure flight to Fukushima, carrying one passenger and one pilot. Few minutes later, the pilot reported an unexpected situation to ATC and was cleared to return to Yao. At an altitude of 17,200 feet and a speed of 150 knots, the aircraft entered an uncontrolled descent, partially disintegrated in the air and eventually crashed in a hilly and wooded terrain near the village of Yamazoe, bursting into flames. Both occupants were killed.

4197802 Manitoba

The pilot reported that, during the preflight, it was snowing, and he wiped the snow that had accumulated on the wings off "as best as [he] could." He added that, while taxiing to the runway, "snow was falling heavily," and he observed "light accumulation of wet snow" on the wings. During the takeoff roll, he observed the snow "sloughing off" the wings as the airspeed increased. Subsequently, during the climb to about 150 ft above the ground, the airplane yawed to the left, and he attempted to recover using right aileron. He reported that he "could see a stall forming," so he lowered the nose and reduced power to idle. The airplane impacted the general aviation ramp in a left-wing-down attitude and slid 500 to 600 ft. The pilot reported on the National Transportation Safety Board Aircraft Accident/ Incident Report 6120.1 form that the airplane stalled, and he recommended "better deicing" before takeoff. The airplane sustained substantial damage to the fuselage and left wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. A review of recorded data from the automated weather observation station located on the airport revealed that, about 27 minutes before the accident, the wind was 010° at 8 knots, 1/2-mile visibility, moderate snow, freezing fog, and sky condition broken at 500 ft above ground level (agl) and overcast at 1,500 ft agl. The airplane departed from runway 16. The Federal Aviation Administration (FAA) Aeronautical Information Manual stated, in part: "The presence of aircraft airframe icing during takeoff, typically caused by improper or no deicing of the aircraft being accomplished prior to flight has contributed to many recent accidents in turbine aircraft." The manual further stated, "Ensure that your aircraft's lift-generating surfaces are COMPLETELY free of contamination before flight through a tactile (hands on) check of the critical surfaces when feasible. Even when otherwise permitted, operators should avoid smooth or polished frost on lift-generating surfaces as an acceptable preflight condition." FAA Advisory Circular, AC 135-17, stated in part: "Test data indicate that ice, snow, or frost formations having thickness and surface roughness similar to medium or course sandpaper on the leading edge and upper surfaces of a wing can reduce wing lift by as much as 30 percent and increase drag by 40 percent." Included in the public docket for this report is a copy of a service bulletin from the airplane manufacturer, which describes deicing and anti-icing ground procedures. It stated, in part: During conditions conducive to aeroplane icing during ground operations, take-off shall not be attempted when ice, snow, slush or frost is present or adhering to the wings, propellers, control surfaces, engine inlets or other critical surfaces. This is known as the "Clean Aircraft Concept". Any deposit of ice, snow or frost on the external surfaces may drastically affect its performance due to reduced aerodynamic lift and increased drag resulting from the disturbed airflow.

Trustey Management Corporation

The airline transport pilot was landing at the destination airport after a cross-country flight in visual meteorological conditions. The tower controller stated that the airplane's landing gear appeared to be extended during final approach and that the airplane landed within the runway's touchdown zone. The tower controller stated that, although the airplane made a normal landing, he heard a squealing noise that continued longer than what he believed was typical. The pilot subsequently transmitted "go-around." The tower controller acknowledged the go-around and cleared the pilot to enter a left traffic pattern. The tower controller stated that he heard the engine speed accelerate while the airplane maintained a level attitude over the runway until it passed midfield. He then saw the airplane pitch up and enter a climbing left turn. The tower controller stated that the airplane appeared to enter an aerodynamic stall before it descended into terrain in a left-wing-down attitude. Another witness reported that he saw the airplane, with its landing gear extended, in a steep left turn before it descended rapidly into terrain. A postaccident examination did not reveal any evidence of flight control, landing gear, or engine malfunction. An examination of the runway revealed numerous propeller slash marks that began about 215 ft past the runway's touchdown zone; however, there was no evidence that any portion of the airframe had impacted the runway during the landing. Additionally, measurement of the landing gear actuators confirmed that all three landing gear were fully extended at the accident site. Therefore, the pilot likely did not adequately control the airplane's pitch during the landing, which allowed the propeller to contact the runway. Due to the propeller strikes, the propeller was likely damaged and unable to provide adequate thrust during the go-around. Further, based on the witness accounts, the pilot likely did not maintain adequate airspeed during the climbing left turn, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall at a low altitude.

AG Plastics

The single engine aircraft departed Cannes-Mandelieu Airport at 1040LT bound for Courtrai-Wevelgem Airport, Belgium, with four passengers and one pilot on board. About one hour and 40 minutes into the flight, while cruising in IMC conditions at FL240, the aircraft start a quick descent to the right until FL149. Speed increased and the overspeed warning sound came on. Forty-five seconds after the start of the quick descent, the airplane initiated a climb with a rate of 10,000 feet per minute until it stalled at FL201, still in IMC conditions. The airplane then entered a dive and went into a flat attitude when it went out of clouds at an altitude estimated between 1,000 and 2,000 feet. This altitude was insufficient to the pilot to regain control and without external visual references, he lost control of the airplane that crashed in a wooded area. The pilot and a passenger were killed while three other passengers were injured. The aircraft was destroyed.