What happened
During an approach to East Wallabi Island, the pilot encountered a mechanical limitation caused by personal equipment. An EPIRB positioned on the pilot's right hip obstructed the flap lever, making it impossible to lock the flaps in the full position. Consequently, the aircraft continued the approach using only the first stage of flap extension.
This configuration resulted in higher required landing speeds and a longer landing distance than standard. During the landing flare, the reduced drag from the partial flap setting, potentially paired with a higher approach speed, caused the aircraft to float significantly past the intended touchdown point. Although the remaining runway was sufficient to stop the aircraft with maximum braking, the pilot did not apply full braking immediately. Instead, priority was given to retracting the flaps, and the risk of an overrun was not recognized until it was too late to prevent the aircraft from exiting the runway.
The investigation
The investigation focused on the physical obstruction caused by the pilot's gear and the subsequent pilot response during the landing phase. Investigators examined how the EPIRB placement interfered with the cockpit controls and evaluated the decision-making process regarding a potential go-around.
Findings
- The EPIRB worn by the pilot physically blocked the flap lever, preventing the selection of full flaps.
- The use of a reduced flap setting increased the required landing distance.
- The aircraft experienced a significant float during the landing phase.
- The pilot failed to initiate a go-around despite the extended landing roll.
- A delay in applying maximum braking occurred as the pilot focused on flap retraction, leading to the overrun.