# NTSB ERA18FA235: Airtime Cygnet, N186AT, Pensacola, FL, August 27, 2018 - Type: NTSB accident investigation - Classification: Accident · Fatal · Field investigation · Final report - Date: August 27, 2018, 12:15 local (17:15 UTC) - Place: Pensacola, FL - Coordinates: 30.363056, -87.058609 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=30.3631&lon=-87.0586&mi=10 - Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping) - Defining event: [Maneuvering: Loss of control in flight](https://openairdocs.org/ntsb-events/240) - Highest injury: Fatal - Injuries: 1 fatal - Status: Completed, report June 3, 2020 - Report: Approved by Office Director - NTSB office: Eastern Region Aviation - Parties: Airtime Aircraft, FAA FSDO - NTSB case key (mKey): 98167 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ERA18FA235 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/98167/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=98167 - Page: https://openairdocs.org/ntsb/ERA18FA235 ## Probable cause The student pilot's loss of aircraft control for undetermined reasons. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Airtime CYGNET, 3 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=06001AR), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Not determined](https://openairdocs.org/ntsb-findings/05000000): Not determined › Not determined · Unknown/Not determined (probable cause); cases with it: [Airtime CYGNET, 1 case](https://openairdocs.org/ntsb-findings/05000000/cases.md?model=06001AR), [All aircraft, 2,247 cases](https://openairdocs.org/ntsb-findings/05000000/cases.md) - [Health/Fitness: physical fitness](https://openairdocs.org/ntsb-findings/02013010): Personnel issues › Physical · Pilot; cases with it: [Airtime CYGNET, 1 case](https://openairdocs.org/ntsb-findings/02013010/cases.md?model=06001AR), [All aircraft, 7 cases](https://openairdocs.org/ntsb-findings/02013010/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Maneuvering: Loss of control in flight](https://openairdocs.org/ntsb-events/240) (defining event); cases with it: [Airtime CYGNET, 1 case](https://openairdocs.org/ntsb-events/240/sequence.md?model=06001AR), [All aircraft, 5,002 cases](https://openairdocs.org/ntsb-events/240/sequence.md) - [Maneuvering: Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241); cases with it: [Airtime CYGNET, 1 case](https://openairdocs.org/ntsb-events/241/sequence.md?model=06001AR), [All aircraft, 1,529 cases](https://openairdocs.org/ntsb-events/241/sequence.md) ## Analysis Following a 1-year period without flying, the student pilot completed two flights in his amphibious weight-shift-control aircraft with a flight instructor before departing on his first solo flight. The instructor reported that, during the two instructional flights, the student completed takeoffs and landings, steep turns, stalls, and spiral recovery "perfectly." After exiting the aircraft, the instructor told the student to perform several water landings, with traffic patterns 500 ft above ground level (agl). The student departed and, on the downwind leg, the aircraft entered a left descending spiral that continued until water impact. Examination of the engine and airframe revealed no preimpact mechanical failures or anomalies that would have precluded normal operation. ## Factual narrative According to Federal Aviation Administration (FAA) records, the two-place, weight-shift control aircraft was issued a special airworthiness certificate in the light sport category on June 1, 2016. The aircraft was equipped with floats for water operations and retractable tricycle landing gear for land operations. On August 27, 2018, about 1215 central daylight time, an Airtime Aircraft, Inc., Cygnet weight-shift-controlled aircraft, N186AT, was substantially damaged when it was involved in an accident near Pensacola Beach, Florida. The student pilot was fatally injured. The aircraft was operated as a Title 14 Code of Federal Regulations Part 91 instructional flight that departed about 1205. The pilot, who also owned the accident aircraft had completed his first flight in about 1 year the day before the accident; the flight was conducted with an instructor. The instructor stated that the pilot flew very well during the flight. The pilot flew with the instructor again the day of the accident, during which they flew about 2 hours and performed over 20 touch-and-go landings in the water of Santa Rosa Sound, an inland waterway north of Pensacola Beach. They also performed stalls, steep turns, and spiral recovery. The instructor stated that the pilot was flying "perfectly" and was ready for his first solo flight. They landed near the shore and the flight instructor got out of the aircraft. He told the pilot to complete several left rectangular patterns at 500 ft above ground level (agl) with subsequent water landings and takeoffs. He also reminded the pilot that he had "200 less pounds in the back seat." The instructor watched the aircraft depart westbound, perpendicular to the shore, and stated that the takeoff and climb appeared normal and the engine power settings sounded normal. However, as the airplane became established on downwind, about 400 to 500 ft agl, the instructor noticed the left wing drop rapidly to about 35° followed by a quick right wing drop to about 60° before the aircraft turned back to the left and progressed into a left descending spiral that continued until it impacted the water. According to the autopsy performed by the State of Florida, Office of the Medical Examiner, District I, the cause of death was multiple blunt force injuries. In addition, hypertensive and atherosclerotic heart disease was identified. The heart weighed 610 grams (average for a 260-lb man is 425 gm with a range of 322-561 gm). However, there was no description of wall thickness or chamber size in the autopsy report. The left anterior descending coronary artery was described as 100% occluded by atherosclerosis, and the circumflex artery was 40-50% stenosed (the right coronary artery was widely patent). There was no description of gross scarring of the myocardium, but no microscopy of the heart was performed. No other significant natural disease was described. Toxicological testing was performed by the FAA Forensic Sciences Research Laboratory. Testingidentified naproxen, an over-the-counter analgesic that is not impairing. All other results were negative for carbon monoxide, ethanol, and all tested-for drugs and their metabolites. The wreckage floated about 1 mile from the accident location before it was recovered from the bay. The left wing strut and the left leading edge tube were fractured and bent in several locations, the fuselage was deformed, and the left float was ruptured. The right float was intact and kept the aircraft afloat. All structural components and flight control cables were accounted for during the examination. The haul back cable remained attached and all tension wires and control wires were mounted in their respective locations. The control bar remained intact and connected to the keel post and functioned as designed. The engine remained attached to the fuselage and all three propeller blades were uniformly broken off 5 inches from the propeller hub. The carburetors remained attached and exhibited no anomalies. The spark plugs remained secured to their respective cylinders. The spark plugs were removed and examined and displayed minimal wear when compared to the Champion Check-A-Plug chart. Thumb compression and suction on all cylinders was confirmed when the engine was rotated at the propeller hub. All valves, pushrods, and springs operated normally, and rotation was smooth, with no noticeable abnormal noise or friction noted. The pistons appeared well-lubricated and there was no interior engine damage observed. The engine and airframe revealed no preimpact mechanical failures or anomalies that would have precluded normal operation. ## Aircraft - Registration: [N186AT](https://openairdocs.org/deregistered/N186AT-2019-11-29), registration cancelled 2019-11-29, S/N 111, built 2016 (OpenAirDocs) - Reported make and model: AIRTIME CYGNET - Registry model: [Airtime CYGNET](https://openairdocs.org/model/airtime-cygnet) (registry code 06001AR) (OpenAirDocs) - Registry engine: [Rotax 912ULS series](https://openairdocs.org/engine/rotax-912uls-series) (registry code 55572, 4 cycle) (OpenAirDocs) - Category: Weight-shift - Serial number: 111 - Year built: 2016 - Airframe hours: 174 - Engines: Rotax 912 100 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Airworthiness certificate: Special, Special light-sport (Special) - Departed: Pensacola, FL - Destination: Pensacola, FL - Equipment: Unknown ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 53; injuries: fatal; student; last flight review August 10, 2016; seat: front; toxicology performed; flight hours: 33 in this make and model ## Weather - Conditions: Visual (VMC), Day - Wind: 140° at 8 knots - Visibility: 10 statute miles - Lowest ceiling: 25,000 ft broken - Temperature: 90 °F, dew point 72 °F - Altimeter: 30.11 inHg - Observed at: NPA, 10 nm away ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 20180827016089A](https://openairdocs.org/incident/20180827016089A), Aug 27, 2018: Airtime Aircraft Inc CYGNET, Gulf Breeze, FL, Destroyed, 1 fatal. Airman had just departed the water on his first solo takeoff and landing. While on downwind and in straight and level flight, airman's CFI observed the left… ## Docket (6 files) The files NTSB released with the investigation on April 24, 2020, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=98167. 15.0 MB in all. - Record of Conversation-CFI and Witness (item 1, .PDF, 126 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40483032&FileExtension=.PDF&FileName=Record%20of%20Conversation-CFI%20and%20Witness-Master.PDF - Memorandum for Record- Airtime (item 2, .PDF, 97 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40483033&FileExtension=.PDF&FileName=Memorandum%20for%20Record-%20Airtime-Master.PDF - Weather Reports and Records (item 3, .PDF, 138 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40483034&FileExtension=.PDF&FileName=Weather%20Reports%20and%20Records-Master.PDF - Photo Array-Accident Site and Damage (item 4, .PDF, 702 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40483035&FileExtension=.PDF&FileName=Photo%20Array-Accident%20Site%20and%20Damage-Master.PDF - Toxicological Report_Pilot (item 5, .PDF, 97 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40483036&FileExtension=.PDF&FileName=Toxicological%20Report_Pilot-Master.PDF - Party Form (item 6, .PDF, 13.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40483037&FileExtension=.PDF&FileName=Party%20Form-Master.PDF From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.