What happened
A training mission originating from Surabaya-Juanda Airport resulted in an aircraft accident approximately 64 km northwest of Surabaya. While the aircraft was maintaining a cruising altitude of 9,000 feet, the crew performed a maneuver to simulate engine-out stalls. During this procedure, the aircraft experienced a significant loss of altitude, dropping to 1,5-00 feet.
In an effort to recover, the crew initiated an emergency descent toward the ground. During this phase, the aircraft collided with an electric pole before impacting a sandy area. The impact caused the total destruction of the aircraft. Both pilots sustained injuries during the event.
Findings
The accident occurred while the crew was intentionally testing the aircraft's performance during stalls without engine power.