Biocide overdose blunder suspected in A321 dual-engine incident
UK investigators probing a serious dual engine problem on a departing Airbus A321 have discovered its fuel system had previously been overdosed with biocide, after a maintenance engineer misunderstood a measurement term. The engineer was confused by the term ‘ppm’ – meaning ‘parts per million’ – while conducting a biocidal shock treatment of the Titan Airways A321’s fuel tanks, as the jet neared the end of a month-long maintenance check. While the anti-contamination treatment required a biocid