NEW : Flight CX715 says it is aware of the incident and providing technical assistance . Eight passengers aboard a Cathay Pacific plane were injured last year after an Airbus A330 with engine problems made an emergency landing in Hong Kong . Witnesses say they heard loud bangs , and passengers prayed . The flight returned to Jakarta after engine trouble en route to Indonesia , Singapore . Sparks were reported from the No . one engine and were doused after the plane landed .
NEW : Flight CX715 says it is aware of the incident and providing technical assistance . Witnesses say they heard loud bangs , and passengers prayed . The flight returned to Jakarta after engine trouble en route to Indonesia , Singapore . Sparks were reported from the No . one engine and were doused after the plane landed .