A tow pilot’s distraction caused by personal cellphone use resulted in a collision last year with moored barges on the lower Mississippi River, US the National Transportation Safety Board (NTSB) said on Thursday, July 17.
The towing vessel William B Klunk was pushing 22 loaded hopper barges on April 17, 2024, when the tow collided with moored barges at a fleeting area near Baton Rouge, Louisiana.
Thirteen barges broke away from the William B Klunk tow and three barges broke away from the fleeting area, resulting in damage to the barges, a fleet crewboat and two mooring dolphins. The collision resulted in one minor injury and estimated damages of US$810,000.
The pilot reported using his personal mobile phone during the transit. In the almost six minutes leading up to the collision, the pilot did not make any rudder or throttle adjustments as the tow moved toward the fleeting area.
The onboard image recorder system footage showed the pilot using his personal mobile phone and not monitoring the tow’s position 40 seconds before the collision.
While navigating the tow for about 1.5 hours before the collision, the pilot engaged in non-operational, secondary tasks, including taking an administrative phone call from the company’s safety officer, making a personal phone call and sending text messages.
“Use of cell phones, including company cell phones (particularly for non-operational conversations), should never interfere with a watchstander’s primary task to safely navigate a vessel and maintain a proper lookout,” the NTSB report said.
“To reduce the risk of cell phone distraction, operating companies should establish protocols regarding both personal and work-related cell phone use, and vessel personnel should understand the importance in following them.”
Investigators determined the pilot’s fatigue due to limited sleep the night before had contributed to the collision. The pilot received about four hours of continuous sleep in the 36 hours before the collision.
The pilot’s fatigue was due to him being up nearly 18 hours at the time of the collision.
“The risk of distraction increases when an individual is fatigued,” the NTSB report said. “Fatigue’s impacts to attention, vigilance, and multi-tasking can increase the likelihood that an individual will disengage from their primary task and become distracted by a secondary task.”
Marine investigation report 25-26 is available online.