Colonia, NJ, USA
N959MJ
Cessna 414
The pilot was conducting a GPS circling instrument approach in instrument meteorological conditions to an airport with which he was familiar. During the final minute of the flight, the airplane descended to and leveled off near the minimum descent altitude (MDA) of about 600 ft mean sea level (msl). During this time, the airplane’s groundspeed slowed from about 90 knots to a low of 65 knots. In the few seconds after reaching 65 knots groundspeed, the flight track abruptly turned left off course and the airplane rapidly descended. The final radar point was recorded at 200 ft msl less than 1/10 mile from the accident site. Two home surveillance cameras captured the final few seconds of the flight. The first showed the airplane in a shallow left bank that rapidly increased until the airplane descended in a steep left bank out of camera view below a line of trees. The second video captured the final 4 seconds of the flight; the airplane entered the camera view already in a steep left bank near treetop level, and continued to roll to the left, descending out of view. Both videos showed the airplane flying below an overcast cloud ceiling, and engine noise was audible until the sound of impact. Postaccident examination of the airplane revealed no evidence of preimpact mechanical malfunctions that would have precluded normal operation. The propeller signatures, witness impact marks, audio recordings, and witness statements were all consistent with the engines producing power at the time of impact. The pilot likely encountered restricted visibility of about 2 statute miles with mist and ceilings about 700 ft msl. When the airplane deviated from the final approach course and descended below the MDA, the destination airport remained 3.5 statute miles to the northeast. Although the airplane was observed to be flying below the overcast cloud layer, given the restricted visibility, it is likely that the pilot was unable to visually identify the airport or runway environment at any point during the approach. According to airplane flight manual supplements, the stall speed likely varied from 76 to 67 knots indicated airspeed. The exact weight and balance and configuration of the airplane could not be determined. Based upon surveillance video, witness accounts, and automatic dependent surveillance-broadcast data, it is likely that, as the pilot leveled off the airplane near the MDA, the airspeed decayed below the aerodynamic stall speed, and the airplane entered an aerodynamic stall and spin from which the pilot was unable to recover. Based on a readout of the pilot’s cardiac monitoring device and autopsy findings, while the pilot had a remote history of arrhythmia, sudden incapacitation was not a factor in this accident. Autopsy findings suggested that the pilot’s traumatic injuries were not immediately fatal; soot material in both the upper and lower airways provided evidence that the pilot inhaled smoke. This autopsy evidence supports that the pilot’s elevated carboxyhemoglobin level was from smoke inhalation during the postcrash fire. In addition, there were no distress calls received from the pilot and there was no evidence found that would indicate there was an in-flight fire. Thus, carbon monoxide exposure, as determined by the carboxyhemoglobin level, was not a contributing factor to the accident.
HISTORY OF FLIGHTOn October 29, 2019, at 1058 eastern daylight time, a Cessna 414A airplane, N959MJ, was destroyed when it was involved in an accident in Colonia, New Jersey. The commercial pilot was fatally injured. The airplane was operated as a Title 14 Code of Federal Regulations (CFR) Part 91 personal flight. The pilot’s spouse reported that he planned to depart Leesburg Executive Airport (JYO), Leesburg, Virginia, about 0900 local; however, he delayed his departure due to the weather at his destination, Linden Airport (LDJ), Linden, New Jersey. She reported that the pilot was scheduled to give a lecture in Queens, New York, in the afternoon. Review of radar and flight plan data provided by the Federal Aviation Administration (FAA) revealed that the airplane departed JYO at 0950 on an instrument flight rules (IFR) flight plan and proceeded on course to LDJ. At 1053:20, the airplane’s radar altitude was 2,000 ft mean sea level (msl) and its position was over the DAPVY GPS waypoint, which was the first waypoint associated with the GPS-A circling instrument approach procedure to LDJ. The airplane then turned to a northeast heading, which was consistent with the final approach course for the GPS-A approach. For the next 2 1/2 minutes, the airplane descended along the final approach course and crossed the final approach fix (GEZSY) about 1,200 ft msl (radar altitude). During the descent from DAPVY to GEZSY, the airplane’s groundspeed varied from about 110 knots, to 140 knots, and then to 100 knots. The airplane continued to descend after GEZSY and crossed the subsequent waypoint of 3 nautical miles (nm) from BAUTZ about 700 ft msl. From GEZSY t0 3nm to BAUTZ the groundspeed varied from about 100 knots, to 115 knots, and to 85 knots. The airplane subsequently descended to 600 ft msl, maintained course, and remained at 600 ft for about 1 minute. During this time, groundspeed varied and increased from about 80 knots to 90 knots before decreasing to 65 knots. At 1058:02, the airplane’s flight track turned left off course and the airplane rapidly descended. The final radar return, at 1058:07, was less than 1/10 mile from the accident site and showed the airplane at 200 ft msl headed northwest. Figure 1 shows the automatic dependent surveillance-broadcast (ADS-B) data for the final 5 minutes of the flight. The data presented are calculated groundspeed and geometric altitude, which is the height of the airplane above the earth ellipsoid calculated by GPS (the airplane’s ADS-B signal did not report barometric altitude). The yellow bars denote the position of the aforementioned GPS approach waypoints. Figure 1: ADS-B data from the final 5 minutes of the flight. Review of air traffic control communications provided by the FAA revealed that the pilot was communicating with New York Approach during the arrival into the LDJ area. About 1050, the controller provided the pilot with a recently received pilot report (PIREP) for cloud bases at 500 ft overcast at nearby Newark Liberty International Airport (EWR). The pilot acknowledged and subsequently informed the controller that LDJ was reporting bases at 700 ft. The controller then informed the pilot that the automated report at EWR was reporting an 800 ft broken ceiling. At 1051:50 the pilot was cleared for the GPS-A nonprecision circling instrument approach procedure to LDJ. At 1056:56, the controller stated to the pilot, “say flight conditions.” The pilot immediately responded, “say again oh we're still IFR.” At 1058:06 the controller again asked the pilot to say the flight conditions; however, there was no response. At 1058:12, the controller stated to the pilot, “check altitude immediately;” however, there was no response from the pilot. This was the only altitude warning the controller provided to the pilot. The controller attempted to reach the pilot again multiple times, but there was no response. Figure 2 provides an overview of the flight track, ATC and pilot communications during the final minutes of the flight, the missed approach point (BAUTZ), and LDJ. The solid red line denotes the flight track, and the dotted yellow lines and blue lines reflect the possible courses to be flown during the approach. Figure 2: Overview of the flight track and radar data with excerpts of the ATC transcript. Two home surveillance cameras captured the final portions of the flight. The first video, taken about .20 nautical mile south of the accident site, showed the airplane in a shallow left bank as it entered the camera view, and subsequently the airplane entered a rapid descending left turn and exited the camera view. The second video, which was positioned about .20 nautical mile north of the accident site, captured about the final 4 seconds of the flight. The airplane entered the camera view in a descending steep left turn near the treetops, continued to roll to the left, and subsequently descended out of view. The sound of an impact was recorded about 1 second after the airplane exited the camera view. Both cameras showed the airplane flying below an overcast cloud ceiling. Two additional home surveillance cameras captured the audio of the final portions of the flight. Both audio recordings revealed that the engines were running until an impact was heard, and the sound of the engines increased in the few seconds prior to the impact. About 10 seconds after the sound of impact, a loud explosion was recorded. A witness, who was in his car about 200 ft from the accident site, reported that he heard a loud noise coming from behind him that kept getting louder. He slowed his vehicle, looked out his left window, and saw the accident airplane in a 45° left bank about 80 ft above the ground, flying west. He did not observe the landing gear extended. He subsequently witnessed the airplane strike a tree and then a house. He reported that the engines were “extremely loud.” A second witness, located about 1/2 mile south of the accident site, reported that while outside of his home, he saw the airplane descend through an overcast cloud layer. He added that the engines were “running fine, no stuttering.” He noted that the landing gear were down and that the airplane was “lumbering along with the nose up” in level flight several hundred feet above the trees. The airplane subsequently exited his view, and he heard a loud impact about 10 seconds later. PERSONNEL INFORMATIONFragments of the pilot's logbook were recovered in the wreckage; however, the majority of its contents were illegible. On the application for the pilot’s most recent medical certificate, dated April 3, 2019, he reported 7,173 total hours of flight experience, including 66 hours in the previous 6 months. On an aircraft insurance application from January 2019, the pilot reported a total of 2,284 multiengine airplane flight hours, including 1,384 flight hours in the accident airplane. According to the pilot’s spouse, he had flown into the destination airport “hundreds of times,” as he was accustomed to commuting to the New York City area on a regular basis. AIRCRAFT INFORMATIONAccording to FAA airworthiness records, the six-seat, multiengine, low-wing airplane was manufactured in 1980. It was powered by two Continental TSIO-520-NB, 335-horsepower engines, which had been modified with the RAM Aircraft conversion. The airplane was also equipped with RAM Aircraft winglets and vortex generators. According to the RAM winglets, vortex generator airplane flight manual supplement, the aerodynamic stall speeds varied with weight, bank angle, and the configuration of the landing gear and wing flaps. Figure 3 shows the range of stall speeds that could be expected. For example, at weight between 6,750 lbs - 5,200 lbs, 20° bank, flaps 15°, and landing gear down, the stall speed would vary from 76 to 67 knots indicated airspeed. The supplement stated that the maximum altitude loss during a conventional stall was approximately 550 ft. Figure 3: Aerodynamic stall speed chart provided in the applicable airplane flight manual supplement METEOROLOGICAL INFORMATIONA search of archived ForeFlight information indicated that the pilot requested weather information via ForeFlight Mobile at 1206 on October 28 with a planned departure of 0830 on October 29. The weather briefing information contained all the standard weather information valid at that time; however, most of the weather forecast information was only valid through 0500 on October 29. The pilot obtained an additional weather briefing at 0920 the day of the accident via telephone from Leidos Flight Service. The pilot specifically requested the current conditions and outlook for LDJ and Teterboro Airport (TEB), which was the pilot’s alternate airport. The briefer asked whether the pilot was aware of the AIRMETs for IFR conditions, and the pilot confirmed that he was aware. The briefer provided the pilot with current and forecast weather conditions at LDJ and TEB, which included visibilities between 5 and 10 statute miles with drizzle and mist and ceilings between 700 ft above ground level (agl) to 2,500 ft agl. The pilot subsequently inquired when the weather was expected to improve in the Linden-Newark area. The briefer stated, “there may be a slight improvement, still remaining marginal.” The pilot asked when the improved conditions were expected, and the briefer reported that, “it could be 1,400 broken through 1500 zulu [1100 local].” The 1055 recorded weather observation at LDJ included an overcast ceiling at 700 ft agl, 10 statute miles visibility, and calm wind. At 1115, LDJ reported 2 miles visibility, mist, and an overcast ceiling at 700 ft agl. The 1051 recorded weather observation at EWR, located about 8 miles northeast of the accident site, included a broken ceiling at 800 ft and 4 statute miles visibility with light drizzle and mist. At 1135, EWR reported 2 statute miles visibility, light drizzle and mist, and broken ceiling varying between 500 ft to 900 ft agl. A PIREP filed at 1048 from an Airbus A320 on final approach into runway 4R at EWR reported an overcast ceiling base of 500 ft mean sea level. AIRPORT INFORMATIONAccording to FAA airworthiness records, the six-seat, multiengine, low-wing airplane was manufactured in 1980. It was powered by two Continental TSIO-520-NB, 335-horsepower engines, which had been modified with the RAM Aircraft conversion. The airplane was also equipped with RAM Aircraft winglets and vortex generators. According to the RAM winglets, vortex generator airplane flight manual supplement, the aerodynamic stall speeds varied with weight, bank angle, and the configuration of the landing gear and wing flaps. Figure 3 shows the range of stall speeds that could be expected. For example, at weight between 6,750 lbs - 5,200 lbs, 20° bank, flaps 15°, and landing gear down, the stall speed would vary from 76 to 67 knots indicated airspeed. The supplement stated that the maximum altitude loss during a conventional stall was approximately 550 ft. Figure 3: Aerodynamic stall speed chart provided in the applicable airplane flight manual supplement WRECKAGE AND IMPACT INFORMATIONThe main wreckage was located in the basement of a residence. The airplane sustained significant impact and thermal damage as a result of postcrash fire and the wreckage was intermingled with house debris and rubble. The initial impact point was identified by large broken tree branches about 40 ft east of the main wreckage; the wreckage path was oriented on a true heading of 278°. Multiple tree branches were cut at 45° angles and exhibited gray paint transfer consistent with propeller blade contact. The largest piece of the airframe was the forward cabin area, which included the left side cockpit instrument panel. The majority of the right cockpit fuselage skin and the right cockpit instrument panel was consumed by fire. Complete flight control cable continuity could not be established to the flight control surfaces, as a majority of the left and right wings and empennage were consumed by the postimpact fire and were not located in the house debris. Partial aileron and elevator flight control cable continuity was established by observing the cables moving in the lower forward floor assembly area when the left yoke was moved by hand. The left and right wing flap tubes and bellcranks were observed. The right flap chain, when measured, was consistent with a flap setting of 15°. The left flap chain was not observed. Rudder cable continuity was not established. The left, right, and nose landing gear had separated from the fuselage; the landing gear position could not be determined based on observation of the landing gear actuators. The landing gear handle arm was twisted, and its position could not be determined. The throttle, mixture, and propeller control levers were found full forward. The left and right fuel selector handles were found pointing straight forward in an intermediate position between main and crossfeed. The airspeed indicator was found indicating about 55 knots, the primary attitude indicator was found displaying a 120° left roll, and the pitch indicated a 5° nose up pitch attitude. When disassembled, the gyro moved freely within its housing and displayed small rotational scoring marks. The altimeter was set to 30.31 inches of mercury and indicated 200 ft. The barometric setting was consistent with the LDJ weather observation. The primary heading indicator was found indicating a heading of 260°, the course was set to 010°, and the heading bug was found set to 050°. The altitude alerter was found set to 30,000 ft. The course deviation indicator was found indicating that the airplane was left of course. The left and right engine ignition switches were found in the ON position. The right engine had separated from the wing and was located in the basement of the house forward of the main wreckage. It sustained impact and thermal damage. The three-bladed propeller remained attached to the propeller hub and displayed chordwise scratching, torsional twisting, and s-bending. The crankshaft was rotated by hand through 360°; crankshaft continuity was established from the forward section of the engine to the accessory section. All cylinders displayed normal operating and combustion signatures and thumb compression. The right engine magnetos turned freely by hand and spark was observed on all ignition terminals. No debris was noted in fuel nozzles or fuel manifold. The top spark plugs for each cylinder displayed normal operating combustion signatures. The right turbocharger exhibited thermal damage and the compressor housing and compressor wheel were not located. The vacuum pump attached to the right engine was removed and disassembled; the drive coupling remained intact. The left engine had separated from the wing and was located under the fuselage. It sustained impact and thermal damage. The three-bladed propeller displayed chord-wise scratching and torsional twisting. The crankshaft was rotated by hand through 360° of motion; crankshaft continuity was established from the forward section of the engine to the accessory section. All cylinders displayed normal operating and combustion signatures. Each cylinder, with the exception of the Nos. 4 and 6 cylinders, displayed thumb compression. The Nos. 4 and 6 cylinders contained fire debris on the valve seats, which prevented full closure of the valves. The left engine magnetos sustained significant external and internal thermal damage; the ignition leads could not be tested. The top spark plugs for each cylinder displayed normal operating combustion signatures. The left turbocharger was intact, and the turbine wheel turned freely. The vacuum pump attached to the left engine was removed and disassembled; the drive coupling remained intact. COMMUNICATIONSAir Traffic Control Low Altitude Alerts ATC services were provided by New York Terminal Radar Approach Control (TRACON) (N90) for the pilot’s approach into LDJ. The N90 TRACON was equipped to issue a “Minimum Safe Altitude Warning (MSAW)”. FAA Order 7110.65Y, Air Traffic Control, Pilot/Controller Glossary, provided the following defin
The pilot’s failure to maintain airspeed during a circling instrument approach procedure, which resulted in an exceedance of the airplane’s critical angle of attack and an aerodynamic stall and spin.
Source: NTSB Aviation Accident Database
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