PIA - Pakistan International Airlines (PK, Karachi Int'l) is considering grounding and selling off its fleet of four ex-Cathay Pacific (CX, Hong Kong Chep Lap Kok) B747-300s. The Pakistani press says the airline's board is considering the variant's future amid concerns raised by the operations department regarding their poor fuel efficiency. An official decision on the move is expected to be taken at the airline's next board meeting on December 26. “No major check or maintenance is due on these three aircraft. Marketing and engineering departments do not have any issues in using these aircraft for at least one more year,” the official said. According to the ch-aviation aircraft database, of its four -300s, AP-BFU (msn 23392) and AP-BFY (msn 23920) are the only operational aircraft of the lot. AP-BGG (msn 24215) is undergoing maintenance at Karachi Int'l while AP-BFV (msn 23534) is parke