The Dynamic Airways Boeing 767-200 that caught fire Oct. 29 on an airport taxiway has been discovered by investigators to have a main fuel supply line problem. Investigators have not found evidence of an engine failure.

In an investigative update on the incident, which occurred at Fort Lauderdale-Hollywood International Airport (FLL), the US National Transportation Safety Board (NTSB) said the 767’s “main fuel supply line coupling assembly had disconnected in the wing-to-engine strut above and behind the left engine.” While the fire had appeared to emanate from the aircraft’s left Pratt & Whitney JT9D engine, NTSB said its examination of that engine “revealed no evidence of an engine uncontainment or other failure.”

NSTB said one passenger was “seriously injured” during the evacuation, which occurred after the fire was spotted while the aircraft was holding on a taxiway awaiting takeoff for Caracas, Venezuela. There were 90 passengers and 11 crew aboard the aircraft.

NTSB said the 767-200, which first flew in 1986, had been in dry storage for approximately 29 months until September, when Dynamic leased it. Greensboro, North Carolina-based Dynamic, which operates five 767s, had operated the aircraft that caught fire for about 240 hours prior to the Oct. 29 incident.

NTSB said its initial review of the aircraft logbook “revealed there was no entry of maintenance action having been performed in the area of the fuel coupling prior to the accident flight while in FLL.” The board added that Dynamic “has issued a Fleet Campaign Directive to inspect the remainder of their aircraft to ensure proper installation of the fuel line coupling assemblies.”

Dynamic director of operations Don Dodson expressed his “sincere apologies” for the incident in a statement. He said the aircraft “successfully [passed] required safety, mechanical and operation pre-flight inspections.” He added, “We would not like to speculate about the potential causes of the incident during the ongoing investigation and all of us at Dynamic are committed to fully cooperating with the NTSB and other authorities.”