ATSB Report on Maersk Shekou and STS Leeuwin II Collision
The Australian Transport Safety Bureau (ATSB) released an investigation report on the collision of the container ship Maersk Shekou and the tall ship STS Leeuwin II.
Incident Details
On the morning of 30 August 2024, Maersk Shekou was being guided into Fremantle Port by two pilots. While entering the port, the ship encountered strong winds, including a south-westerly squall reaching approximately 50 knots in the inner harbour entry channel.
As the vessel approached the designated wheel-over point for turning into the inner harbour, it did not execute the expected maneuver. Instead, it continued straight towards Victoria Quay, where it collided with the STS Leeuwin II and the wharf edge.
Damage and Injuries
- Maersk Shekou suffered minor damage.
- STS Leeuwin II experienced significant damage.
- Two crew members aboard STS Leeuwin II sustained minor injuries.
Findings of the ATSB
The ATSB determined that as Maersk Shekou neared the charted wheel-over point near South Mole, the pilot failed to instruct the helmsman to alter the course. Although the pilot employed a mix of four tugs and the ship’s main engine to execute the turn, the helmsman's efforts to maintain the previously given heading interfered with maneuvering into the inner harbour.
“While the pilot used a combination of the 4 available tugs and the ship’s main engine to turn the ship, the helmsman’s attempts to maintain the ship on the previously instructed heading prevented the turn into the inner harbour.”
The collision highlights critical communication lapses during navigation in challenging weather conditions.
Summary
The investigation emphasizes the crucial need for precise pilot and helmsman coordination during port entries, especially under adverse weather conditions.