Thurgau

The aircraft departed Zurich-Kloten at 0857LT on a local training flight, carrying one instructor, five student pilots, two engineers and one technician. The airplane followed different circuits at an altitude between 1,000 and 3,000 meters when control was lost over the Constance Lake. The aircraft went into a spin and crashed into the lake about 4 km off Romanshorn. The wreckage sank by a depth of 200 meters and only few debris were found on water and on the bank between Romanshorn and Arbon. All nine occupants have been killed.

The aircraft left RAF Graveley at 2121LT on April 27, on a bombing mission to Friedrichshafen. While flying over the south of Germany at an altitude of 4,880 meters, the aircraft was hit by Flak. The captain reduced his altitude in an attempt to make an emergency landing when the aircraft eventually crashed in the Konstanz Lake, off Steckborn. The navigator was killed while all six other crew members were unhurt.
Crew (35th Squadron):
P/O Robert Peter, pilot,
Sgt Alfred Brereton, flight engineer,
F/S Geoffrey Foulkes, navigator, †
F/S Noel Davis, bomb aimer,
F/S Murray Bartle, wireless operator,
Sgt David Balmer, mid-upper gunner,
Sgt Irvine Graham, rear gunner.

The crew was taking part to an Air Show in Romanshorn and arrived in the morning from Geneva. During a demo flight, while flying at an altitude of 700 metres, the aircraft went out of control and lost height. During the dive, wings and other pieces detached and the aircraft eventually crashed in the Lake Constance, some 200 metres offshore. Quickly on the scene, SAR teams just found some debris floating on water and both dead bodies were found later in the lake bottom. The Swiss aviator Pierre Émile Taddéoli was killed with his mechanic Y. Giovanelli, engineer by the Italian motorist Isotta-Fraschini.