The recent engine problems experienced by Cathay Pacific's Boeing 747 fleet appear to be confined to the airline. Other major carriers using the same Rolls-Royce engines said their performance had been excellent and problems had been 'very rare'. Their remarks follow comments by Cathay that it had experienced 'several' recent shutdowns on 747s involving Rolls-Royce RB211 engines. British Airways, Qantas Airways and South African Airways said they had experienced very few problems with the engines' performance. They, Cathay and Air New Zealand are the only carriers internationally that use Boeing 747 aircraft powered by the Rolls-Royce RB211 engine involved in the recent incidents. David Hedges, British Airways spokesman in London, said the performance of the engine had been excellent. 'We've had to perform far fewer stringent controls on our RB211s to ensure safe and reliable operation than on other products we operate,' he said. BA - which operates a total of 48 Boeing 747s powered by Rolls-Royce engines - said the rate of problems with the engine had been very low. During the period between July 1996 and January this year, the airline had registered no engine shutdowns among its RB211s, he said. South African Airways spokesman Leon Els said the airline had experienced a single-engine shutdown involving an RB211 on a Boeing 747 in November last year. But this was the only shutdown on one of its RB211-powered 747s in four years of operation. Australia's Qantas, with 31 747s in its fleet, all powered by the RB211 engine, said it had 'no complaints about the engine at all'. 'It is very rare that we have had engine shutdowns [involving the RB211s],' said Freddy Li Wai-hung, general manager of Qantas' Hong Kong operations. 'We have no complaints about those engines at all - they're very reliable,' he said. The performance of the Rolls-Royce engine was 'at least as good as any other', he said. Cathay has more than 30 Boeing 747s in its fleet, all powered by the Rolls-Royce engine. The airline has not said exactly how many recent shutdowns of the RB211 engines have taken place. It did not return calls from the Post yesterday. Rolls-Royce said yesterday new engine parts required to put the 15 grounded Cathay and Dragonair A330 planes back into service were being delivered to Hong Kong over the weekend.