What happened
The incident began when the floatplane collided with a coral reef while operating at Palmyra Atoll. This impact caused extensive damage to the hull of the aircraft. Following repairs, the plane was prepared for transport and departed on January 11 bound for Pearl Harbor.
During the approach to Pearl Harbor, the flight took place in darkness. The pilot executed a hard landing, which led to the aircraft sinking immediately after touchdown. This event resulted in the deaths of three crew members and left two others injured. The fatalities included the pilot and two other enlisted personnel, while the survivors comprised one radio mechanic and one airman.
Findings
The initial damage originated from the collision with the reef at Palmyra Atoll. Although the aircraft was repaired sufficiently to fly, it ultimately failed during the transfer operation. The combination of low-visibility conditions and a hard landing contributed to the final loss of the aircraft in the water.