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N614SB accident description

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Crash location 41.554722°N, 81.703333°W
Nearest city Cleveland, OH
41.499495°N, 81.695409°W
3.8 miles away
Tail number N614SB
Accident date 29 Dec 2016
Aircraft type Cessna 525
Additional details: None

NTSB Factual Report

HISTORY OF FLIGHT

On December 29, 2016, at 2257 eastern standard time, a Cessna 525C (Citation CJ4) airplane, N614SB, was destroyed during an in-flight collision with Lake Erie shortly after takeoff from runway 24R (6,604 feet by 150 feet, asphalt) at the Burke Lakefront Airport (BKL), Cleveland, Ohio. The pilot and five passengers were fatally injured. The airplane was registered to Maverick Air LLC and operated by the pilot under the provisions of Title 14 Code of Federal Regulations Part 91 as a personal flight. Night visual meteorological conditions prevailed for the flight, which was operated on an instrument flight rules (IFR) flight plan. The intended destination was the Ohio State University Airport (OSU), Columbus, Ohio.

The pilot and passengers departed OSU about 1730 and arrived at BKL about 1800. The pilot checked in at the fixed base operator (FBO) at 1812. The pilot and passengers attended a local sporting event before returning to the airport about 2230.

A review of the air traffic control (ATC) communications transcript, the cockpit voice recorder (CVR) transcript, automated dependent surveillance – broadcast (ADS-B) data, and full authority digital engine control (FADEC) unit data revealed the following:

At 2255, the pilot was cleared for takeoff. He was instructed to turn right to a heading of 330° and maintain 2,000 feet mean sea level (msl) after departure. The pilot acknowledged the clearance. At 2256:33, the engine power increased for takeoff, and 15 seconds later the airplane became airborne. At 2257:09, an automated voice annunciated "altitude." A second "altitude" annunciation followed 14 seconds later. At 2257:25, a sound similar to a decrease in engine power was recorded. Two seconds later, the enhanced ground proximity warning system (EGPWS) provided an excessive bank angle warning. At 2257:29, about 2 seconds after the bank angle warning, the tower controller instructed the pilot to contact departure control. The pilot replied, "to departure six one four sierra bravo;" however, that communication was not received by the tower controller suggesting that the pilot did not have the microphone push-to-talk button depressed.

At 2257:37, the controller again attempted to contact the pilot. Two seconds after the controller's transmission, the EGPWS provided a "sink rate" warning to the pilot. The pilot again responded, "six one four sierra bravo," but this was not received by the tower controller. Beginning at 2257:43, the EGPWS provided 7 "pull up" warnings at 1.6-second intervals until the end of the CVR recording. During that time, a sound similar to the overspeed warning began, which continued until the end of the recording. The CVR recording ended at 2257:58.

The tower controller's continued attempts to contact the pilot were unsuccessful, and he subsequently initiated search and rescue procedures.

A summary of the operational factors associated with the accident, including a detailed history of flight, is included in the docket associated with the investigation.

PERSONNEL INFORMATION

The pilot's Cessna 525 single-pilot type rating was added December 8, 2016, after he successfully completed the prescribed Federal Aviation Administration (FAA) practical test (checkride). His initial Cessna 525 training was completed in the accident airplane. The pilot subsequently completed a simulator-based recurrent training course at FlightSafety International on December 17, 2016.

The pilot had accumulated a total of 56.5 hours in Cessna 525 airplanes. Of that time, 8.7 hours were as pilot-in-command which included the practical test. His most recent logged flight was on December 17 from Orlando International (MCO) to OSU. The pilot owned a Cessna 510 (Mustang) for about 2 years before purchasing the accident airplane. He had logged 372.9 hours total time in Cessna 510 airplanes. Interviews with the pilot's instructor confirmed that the pilot was trained to consistently use the autopilot after takeoff.

Available information indicated that the pilot had been awake for nearly 17 hours at the time of the accident.

AIRCRAFT INFORMATION

FAA records revealed that the airplane was issued a standard airworthiness certificate in January 2012 and was subsequently exported to Brazil. The airplane was imported to the United States and purchased by the owner in October 2016. An FAA standard airworthiness certificate was issued at that time.

According to the airplane maintenance records, the most recent inspection was completed on October 3, 2016, at 812.7 hours airframe total time. Compliance with all current airworthiness directives and mandatory service bulletins was confirmed at that time. Additional maintenance work was completed on October 14, 2016, at 814.1 hours total airframe time. The most recent maintenance work occurred on December 17, 2016, at 860.7 hours total airframe time.

METEOROLOGICAL INFORMATION

The observations from BKL and Cleveland Hopkins International (CLE) indicated that marginal visual conditions prevailed at the time of the accident. Precipitation was reported in the one-minute observations at BKL until 2251, with no precipitation reported at the surface until 2342. While the surface temperature remained above freezing after the airplane landed at BKL and about the accident time, the dew point temperature remained below freezing the entire time with precipitation occurring on and off in the snow shower activity.

AIRPORT INFORMATION

WRECKAGE AND IMPACT INFORMATION

The accident site was located in Lake Erie about 2 miles northwest of BKL. The depth of the lake at that location was about 40 feet. Search and recovery efforts were hampered by weather and lake conditions. Airplane debris, including the cockpit voice recorder, was located beginning on January 5. The recovery operations were conducted over the following 2 weeks as lake conditions permitted.

A postaccident examination of the recovered wreckage did not reveal any anomalies consistent with a preimpact failure or malfunction.

MEDICAL AND PATHOLOGICAL INFORMATION

An autopsy and toxicology testing were not performed due to the limited remains recovered.

ADDITIONAL INFORMATION

Flight Guidance Panel

The flight guidance panel (FGP), located on the glareshield, allows the pilot to select manual or autopilot guidance for airplane control. The autopilot button is located on the upper row of button controls near the right side of the panel. Autopilot engagement is indicated in the flight control system display area along the upper portion of the primary flight display (PFD). There is no indication of the autopilot status on or near the autopilot button on the flight guidance panel.

A comparison of the Cessna 525 systems and those of the airplane previously flown by the pilot, a Cessna 510, revealed that the autopilot engagement button on the Cessna 510 is located in a slightly different location on the Automatic Flight Control System (AFCS) panel. In the Cessna 510, autopilot engagement is indicated along the upper portion of the PFD similar to the accident airplane. In addition, an indicator light adjacent to the autopilot button on the AFCS panel is illuminated when the autopilot is engaged.

Primary Flight Display

The attitude indicator presented by the PFD on the Cessna 525 was an ego-centric ("inside out") type display. An "inside out" perspective involves a fixed aircraft symbol and moving horizon similar to what a pilot sees when looking outside of the aircraft. On the other hand, the Cessna 510 utilizes an exo-centric ("outside in") display. An "outside in" perspective involves a fixed horizon and a moving aircraft symbol.

Spatial Disorientation

The FAA Civil Aeromedical Institute's publication, "Introduction to Aviation Physiology," defines spatial disorientation as a loss of proper bearings or a state of mental confusion as to position, location, or movement relative to the position of the earth. Factors contributing to spatial disorientation include changes in acceleration, flight in IMC, frequent transfer between visual meteorological conditions (VMC) and IMC, and unperceived changes in aircraft attitude.

The FAA's Airplane Flying Handbook (FAA-H-8083-3A) describes some hazards associated with flying when the ground or horizon are obscured. The handbook states, in part: "The vestibular sense (motion sensing by the inner ear) in particular tends to confuse the pilot. Because of inertia, the sensory areas of the inner ear cannot detect slight changes in the attitude of the airplane, nor can they accurately sense attitude changes that occur at a uniform rate over a period of time. On the other hand, false sensations are often generated; leading the pilot to believe the attitude of the airplane has changed when in fact, it has not. These false sensations result in the pilot experiencing spatial disorientation."

NTSB Probable Cause

Controlled flight into terrain due to pilot spatial disorientation. Contributing to the accident was pilot fatigue, mode confusion related to the status of the autopilot, and negative learning transfer due to flight guidance panel and attitude indicator differences from the pilot's previous flight experience.

© 2009-2020 Lee C. Baker / Crosswind Software, LLC. For informational purposes only.