Lake, Sea, Ocean, River

The private pilot and pilot-rated passenger were returning to the airport in night visual meteorological conditions with a cloud ceiling about 1,500 ft above ground level. Radar data indicated that the airplane overflew the airport and completed a 360° descending right turn and overflew the airport again before entering an approximate 180° left climbing turn toward and over an unlighted area within a denselywooded national forest. The airplane continued the left turn and entered a descent to impact in a river about 1 mile from the airport. All major components of the airplane were recovered from the river except the outboard section of the left wing and the left aileron. An examination of the airframe and engine revealed no mechanical malfunctions or failures that would have precluded normal operation. Because each of the two pilots onboard would have been capable of safely landing the airplane, it is unlikely that an acute event from either occupant's heart disease contributed to the accident. The night conditions, which included overcast clouds that would have obscured the nearly full moon, and the pilots' maneuvering for landing over an area devoid of cultural lighting provided conditions conducive to the development of spatial disorientation. It is likely that the pilots experienced a "black hole" illusion while maneuvering to align with the runway for landing, which resulted in an uncontrolled descent and impact with water.

On 31 December 2017, at about 1045 Eastern Daylight-saving Time, five passengers arrived via water-taxi at the Sydney Seaplanes terminal, Rose Bay, New South Wales (NSW) for a charter fly-and-dine experience to a restaurant at Cottage Point on the Hawkesbury River. Cottage Point is about 26 km north of Sydney Harbour in the Ku-ring-gai Chase National Park, a 20 minute floatplane flight from Rose Bay. At about 1130, prior to boarding the aircraft, the passengers received a pre-flight safety briefing. At about 1135, the pilot and five passengers departed the Rose Bay terminal for the flight to Cottage Point via the northern beaches coastal route, in a de Havilland Canada DHC-2 Beaver floatplane, registered VH-NOO and operated by Sydney Seaplanes. The flight arrived at Cottage Point just before midday and the passengers disembarked. The pilot then conducted another four flights in VH-NOO between Cottage Point and Rose Bay. The pilot arrived at Cottage Point at about 1353. After securing the aircraft at the pontoon and disembarking passengers from that flight, the pilot walked to a kiosk at Cottage Point for a drink and food. At about 1415, the pilot received a phone call from the operator via the kiosk, asking the pilot to move the aircraft off the pontoon, which could only accommodate one aircraft at a time. This was to allow the pilot of the operator’s other DHC-2 aircraft (VH-AAM) to pick-up other restaurant passengers. The pilot of VH-NOO immediately returned to the aircraft and taxied away from the pontoon into Cowan Creek. The operator’s records indicated that VH-AAM arrived at the pontoon and shut down the engine at about 1419, and subsequently departed at about 1446. The pilot of VH-NOO returned to the pontoon after having taxied in Cowan Creek with the engine running for up to 27 minutes, while waiting for the other aircraft. During the taxi, closed-circuit television footage from a private residence at Cottage Point showed VH-NOO at 1444, with the pilot’s door ajar. After shutting down the aircraft, the pilot briefly went into the restaurant to see if the passengers were ready to leave, and then returned to the aircraft. The return flight to Rose Bay, scheduled to depart at 1500, provided sufficient time for the passengers to meet a previously booked water-taxi to transport them from Rose Bay to their hotel at 1545. At about 1457, the passengers commenced boarding the aircraft and at around 1504, the aircraft had commenced taxiing toward the designated take-off area in Cowan Creek. At about 1511, the aircraft took off towards the north-north-east in Cowan Creek, becoming airborne shortly before passing Cowan Point. The aircraft climbed straight ahead before commencing a right turn into Cowan Water. A witness, who was travelling east in a boat on the northern side of Cowan Water, photographed the aircraft passing over a location known as ‘Hole in the wall’. These photographs indicated that the aircraft was turning to the right with a bank angle of 15-20°. Witnesses observed the right turn continue above Little Shark Rock Point and Cowan Water. The last photograph taken by the passenger was when the aircraft was heading in a southerly direction towards Cowan Bay. At that time, the aircraft was estimated to be at an altitude of about 30 m (98 ft).Shortly after the turn in Cowan Water, several witnesses observed the aircraft heading directly towards and entering Jerusalem Bay flying level or slightly descending, below the height of the surrounding terrain. Witnesses also reported hearing the aircraft’s engine and stated that the sound was constant and appeared normal. About 1.1 km after entering Jerusalem Bay, near the entrance to Pinta Bay, multiple witnesses reported seeing the aircraft flying along the southern shoreline before it suddenly entered a steep right turn at low-level. Part-way through the turn, the aircraft’s nose suddenly dropped before the aircraft collided with the water, about 95 m from the northern shore and 1.2 km from the end of Jerusalem Bay. The aircraft came to rest inverted and with the cabin submerged. A number of people on watercraft who heard or observed the impact, responded to render assistance. Those people could not access the (underwater) aircraft cabin. The entire tail section and parts of both floats were initially above the waterline, but about 10 minutes later had completely submerged. The pilot and five passengers received fatal injuries.

The flight instructor, commercial pilot receiving instruction, and commercial pilot-rated passenger were conducting an instructional flight in the multi-engine airplane during instrument meteorological conditions. After performing a practice instrument approach, the flight was cleared for a second approach; however, the landing runway changed, and the controller vectored the airplane for an approach to the new runway. The pilot was instructed to turn to a southwesterly heading and maintain 1,600 ft until established on the localizer. Radar information revealed that the airplane turned to a southwesterly heading on a course to intercept the localizer and remained at 1,600 ft for about 1 minute 39 seconds before beginning a descending right turn to 1,400 ft. The descent continued to 1,100 ft; at which time the air traffic control controller issued a low altitude alert. Over the following 10 seconds, the airplane continued to descend at a rate in excess of 4,800 ft per minute (fpm). The controller issued a second low altitude alert to the crew with instructions to climb to 1,600 ft immediately. The pilot responded about 5 seconds later, "yeah I am sir, I am, I am." The airplane then climbed 1,400 ft over 13 seconds, resulting in a climb rate in excess of 6,700 fpm, followed by a descent to 1,400 ft over 5 seconds, resulting in a 1,500-fpm descent before radar contact was lost in the vicinity of the accident site. Radar data following the initial instrument approach indicated that the airplane was flying a relatively smooth and consistent flightpath with altitude and heading changes that were indicative of autopilot use until the final turn to intercept the localizer course. Maneuvering the airplane in restricted visibility placed the pilot in conditions conducive to the development of spatial disorientation. The accident circumstances, including altitude and course deviations and the subsequent high-energy impact, are consistent with the known effects of spatial disorientation. Additionally, examination of the airframe, engines, and propellers revealed no evidence of any preexisting anomalies that would have precludednormal operation. Therefore, it is likely that the pilot receiving instruction was experiencing the effects of spatial disorientation when the accident occurred. Toxicology testing of the flight instructor identified significant amounts of oxycodone as well as its active metabolite, oxymorphone, in liver tissue; oxycodone was also found in muscle. Oxycodone is an opioid pain medication available by prescription that may impair mental and/or physical ability required for the performance of potentially hazardous tasks. The flight instructor's tissue levels of oxycodone suggest that his blood level at the time of the accident was high enough to have had psychoactive effects, and his failure to recognize and mitigate the pilot's spatial disorientation and impending loss of control further suggest that the flight instructor was impaired by the effects of oxycodone. Toxicology testing of all three pilots identified ethanol in body tissues; however, given the varying amounts and distribution, it is likely that the identified ethanol was from postmortem production rather than ingestion.

The aircraft was on its way from Iwakuni Airbase to the USS Ronald Reagan (CVN-76) cruising in the Philippines Sea on behalf of the 7th Fleet. It is believed that while approaching the supercarrier, the airplane stalled and crashed in the sea, apparently following an engine failure. Eight crew members were rescued while three were still missing two days after the accident. The wreckage was localized on 29 December 2017 at a depth of 5,640 meteres.
Those killed were:
Lt Steven Combs, Aviation Boatswain’s Mate (Equipment),
Airman Matthew Chialastri,
Aviation Ordnance Airman Apprentice Bryan Grosso.

On 17 November, 2017, a Tropic Air Cessna 208B Grand Caravan with registration V3-HGX, departed from the Sir Barry Bowen Municipal Airport at approximately 7:15 a.m. local time with one aircraft captain, 11 passengers and 1 crew on board. The flight was a regular operated commercial passenger flight with scheduled stops in Dangriga, Placencia and with the final destination being Punta Gorda. The pilot reported that the portion of the flight from Belize City to Dangriga was uneventful and normal and so was the landing at Placencia. At approximately 8:40 a.m. local time the airplane taxied from the Tropic Air ramp and taxied towards the west on runway 25. The pilot did a turnaround using all the available runway at normal speed and started his takeoff run to the east on runway 07. The pilot proceeded down the runway in a normal takeoff roll with normal takeoff speed and prior to reaching the end of the runway, he rotated the aircraft and lifted the nose wheel to get airborne. At exactly 28 feet past the end of runway 07 and during the initial climb phase, a part of the aircraft landing gear made contact with the upper part of the front righthand passenger door frame of a vehicle that had breached the area in front of the runway which is normally protected by traffic barriers. The impact caused the aircraft to deviate from its initial climb profile, and the pilot reported that the engine was working for a couple seconds and it abruptly shut down shortly after. The pilot realized that he was unable to return to the airport. The pilot carried out emergency drills for engine loss after take-off over water and decided to ditch the aircraft in the sea, which was approximately 200-300 feet from the main shoreline in front of the Placencia airport. The flight crew and all passengers were safely evacuated from the fuselage with the assistance of witnesses and passing boats which provided an impromptu rescue for the passengers. All passengers received only minor injuries.

The single engine aircraft departed Manaus-Eduardo Gomes Airport at 1220LT on a flight to the Anavilhanas Archipelago, carrying cargo, four passengers and one pilot. Upon landing on the Rio Negro, the airplane struck the water surface and crashed upside down before coming to rest partially submerged. The pilot and three passengers were rescued while a fourth passenger was killed.

The airplane departed Ouagadougou on a flight to Abidjan, carrying seven passengers, three crew members and military equipment on behalf of the French Army (antiterrorist operation 'Barkhane'). On approach to Abidjan-Félix Houphouët-Boigny Airport, the crew encountered poor visibility due to heavy rain falls. On short final, the aircraft descended below MDA, impacted water and crashed in the sea few hundred metres short of runway 03. Six occupants were rescued while four others including all three crew members were killed. The aircraft was destroyed. At the time of the accident, weather conditions were below minimums.

The airplane departed Maiquetía-Símon Bolívar Airport at 0011LT for a 35 minutes flight to Barcelona. About five minutes after takeoff, while cruising at an altitude of 23,000 feet, the aircraft went out of control and plunged into the sea few km off Naiguatá, State of Vargas. It appeared the aircraft disintegrated on impact and few debris were found the following morning floating on water. All five occupants were killed.

The single engine airplane departed Zurich Airport Runway 28 at 1134LT bound for Hamburg-Helmut Schmidt Airport, carrying one passenger and one pilot. After passing over the city of Konstanz at an altitude of 16,750 feet in IFR conditions, the airplane entered an uncontrolled descent and eventually crashed in the Konstanz Lake, about 200 metres off Mainau Island. The wreckage was found at a depth of 60 metres and both occupants were killed.

While approaching the Island of Margarita, en route from Maiquetía-Simon Bolivar Airport to Porlamar, the crew encountered control difficulties and informed ATC about hydraulic problems. The crew initiated a rapid descent to 3,000 feet apparently to ditch the aircraft when it went out of control and crashed in the sea about 16 km west off Punta Arenas. The aircraft disintegrated on impact and only few debris were found floating on water. All nine occupants were killed, among them officers flying on behalf of the Vice-Presidency of the Venezuelan Government.