Australia

Crashed on takeoff for unknown reasons. While the aircraft was damaged beyond repair, there were no casualties.

During the takeoff roll, the pilot swerved the airplane to avoid two boys running across the runway. He lost control of the airplane that crashed near the beach. The aircraft was destroyed and all three occupants were injured.

The crew was performing the inaugural flight from Geraldton to Derby which was considered as the first commercial flight within Australia. On approach to Kalbarri, the aircraft crashed for unknown reasons near the Murchinson River, killing both occupants.
Crew:
Ted Broad,
Bob Fawcett.

The crew was performing a training flight out from Point Cook. Shortly after takeoff, while climbing to an altitude of 500 feet, the aircraft dove into the ground and crashed, bursting into flames. One pilot was killed instantly while the second one died few hours later. This was the first accident involving an aircraft of the Royal Australian Air Force which was officially founded a week ago on March 31, 1921.
Crew:
Lt James Fryer-Smith, pilot
Cpl Bertie W. Whicker, mechanic.