What happened
During the final approach to runway 18 at Okiwi, New Zealand, an aircraft encountered severe windshear while on short final. As the pilot attempted to reduce power for landing, the aircraft experienced a rapid and significant drop in airspeed at an altitude of approximately 10 to 15 feet above the ground. This sudden change in wind conditions left the crew with insufficient time to compensate for the loss of lift.
As a result of the windshear, the pilot was unable to control the descent rate, leading to a heavy landing on the runway. The impact caused structural damage to the aircraft, specifically affecting the upper and lower skins of both wings. Additionally, the landing gear oleos and one brake unit sustained damage during the event.
Findings
Prior to the incident, the pilot had noted fluctuating wind conditions at the airfield. In accordance with company standard operating procedures, the pilot had increased the approach speed to 70 knots to mitigate risks. Despite this precaution, the suddenness of the airspeed reduction prevented an effective recovery.
Regarding injuries, one passenger suffered a back injury, which was subsequently diagnosed as a fractured vertebra.