CHAMPAIGN, IL, USA
N386BA
FAIRCHILD F-27
DURING ENGINE START A FUEL LINE RUNNING BETWEEN THE FUEL PUMP AND THE DIFFERENTIAL PRESSURE SWITCH RUPTURED AND CAUSED A SMALL FIRE. THE CREW OBSERVED A FIRE WARNING LIGHT,ABORTED THE START PROCEDURE AND ACTIVATED THE FIRE EXTINGUI SHING SYSTEM WHICH PUT THE FIRE OUT. AN ANALYSIS OF THE BRAIDED LINE REVEALED THAT IT COULD NOT BE IDENTIFIED AS HAVING BEEN MANUFACTURED BY THE COMPANY THAT PRODUCES ORIGINAL FUEL LINES FOR THAT ENGINE. THE AIRCRAFT HAD BEEN RECENTLY ACQUIRED FROM A FOREIGN AIR CARRIER AFTER MANY YEARS OF SERVICE OVERSEAS. IT WAS THE OPINION OF THE TECHNICIANSPERFORMING THE ANALYSIS THAT THE DAMAGE THAT WEAKENED THE LINE DID NOT OCCUR WHILE THE LINE WAS INSTALLED ON THE INCIDENT ENGINE, BUT RATHER AT AN EARLIER TIME, POSSIBLY WHEN THE LINE WAS INSTALLED ON ANOTHER DIFFERENT.
Source: NTSB Aviation Accident Database
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