Consolidated PBY Catalina

Ground-looped while taxiing in Quonset Point NAS. There were no casualties but the seaplane was damaged beyond repair.

Crashed in unknown circumstances into the Furo da Laura, off Guajara. Two crew members were killed while nine others were rescued. The seaplane was lost.

The seaplane was carrying one passenger and five crew members who were completing a post maintenance test flight. The crew was attempting to land in the Khimki Reservoir located northwest of Moscow when the aircraft hit the water surface, nosed down and overturned. Two crew members were killed while three other occupants were injured. The passenger was unhurt and the aircraft sank and was lost.

On the leg from Townsville to Darwin, while cruising 30 km from Georgetown, the flight engineer informed the pilot about a fuel leak on the left engine. The captain decided to divert to Georgetown Airport for an emergency landing but on final, the seaplane was unstable, banking left and right. The pilot increased power on the right engine and attempted a go around when the aircraft banked right, stalled, overturned and crashed in flames in a field located about 5 km from the airport. Five crew members were killed instantly while two others were seriously injured. One of the survivors died from his injuries few hours later.
Crew:
F/Lt David Northey, pilot, †
John Gilbert Humprey Alexander, pilot, †
Leo Maurice Sattler, pilot, †
Alexander John Brown, navigator, †
Frank Slater, flight engineer,
Maurice Henry Wood, flight engineer, †
William Bedford, wireless operator. †

The aircraft was engaged on a ferry flight from Miami to Kingston with an intermediate stop in Nassau, following inspections and repairs. During the flight from Nassau to Kingston, both engines failed and the aircraft was forced to alight on the sea south of Kingston. All four occupants were rescued while the aircraft sank and was lost.
Source:
https://aviation-safety.net/database/record.php?id=19500409-0

Sank during takeoff into the Evans Bay in Wellington when seawater flooded aircraft. There were no casualties.

The seaplane left Albrook AFB in Panama City that day on a maritime patrol mission. Cruising along the Panamanian coast, the aircraft crashed in unknown circumstances few dozen km off Jaqué. All seven crew members were killed.

On landing on the Mar Pequeno, the seaplane hit an obstacle, overturned and sank. A crew member and two passengers were killed while 22 other occupants were rescued.

Based in Agadir Airport, the crew was performing a survey mission over the Ghir Cape, the Oued Souss and the Moroccan coast on behalf of the French Navy (Aéronavale). The seaplane left Agadir Airport at 1930LT with a return time scheduled at 2200LT. En route, the crew maintained several radio contacts with the base when a fire ball was spotted on water off Agadir at 2055LT. The crew of the french submarine christened 'Astrée' arrived on the scene (some 7 NM west of Agadir) within twenty minutes and met on site the Spanish trawler christened 'Javier Cloret' which was cruising in the vicinity when the accident occurred. The nose wheel was found during the following night but no trace of the 17 occupants who were considered as deceased. At the time of the accident, weather conditions were considered as fine with sky clear and no turbulences. All 17 occupants were killed and all 8 passengers were officers from the cruiser christened 'Jeanne d'Arc'. The aircraft was registered 46564 (22.S-3).
Crew:
BRETON Robert, radio operator,
FEVRE Jean,
GROSMAITRE Roland, engineer,
HUIBAN René, pilot,
LE BOT Gabriel, engineer,
MOY Louis, engineer,
RAIGNE Jean,
ROUVIERE Michel,
TOUZET Pierre, pilot.
Passengers:
AUBRON Daniel,
AUDIC Louis,
COUËTOUX Jean,
DAUTRY Louis,
GALOUZEAU de VILLEPIN Gonzague,
JAFFRÈS Claude,
NOÉ Michel,
ROBERT André.

The seaplane was used by personnel from the Legión Caribe to take part of the invasion of the Dominican Republic. As the invasion failed, the crew attempted to flee when the aircraft was shot downy by Dominican soldiers located in a speedboat. The seaplane caught fire and sank. All four crew members were killed.