Asia Tech Wire (Sep 3) -- The Civil Aviation Authority of China (CAAC) has intervened in the investigation of the Cathay Pacific Airbus A350 engine problem, according to Chinese media outlet Yicai.

Cathay Pacific said flight CX383 to Zurich, Switzerland, turned back to Hong Kong earlier on Monday, and the company later discovered an engine part failure on the Airbus A350 that was operating the flight.

The Hong Kong carrier has now completed an inspection of its 48 A350s and found that 15 of them need to have engine parts replaced, with three of them already repaired.

Cathay Pacific said Tuesday it will continue to repair the remaining A350s and expects all affected aircraft to resume operations on Saturday.

The A350 jet in question features Trent XWB-97 engines, Rolls-Royce's largest civil jet engine.

The engines on Airbus A350s around the world come from Rolls-Royce, and there are 78 A350s under operation by Air China, China Eastern Airlines, China Southern Airlines and Sichuan Airlines in mainland China.

After Cathay Pacific announced that it was grounding some of its A350s, sources familiar with the matter told Yicai that CAAC has already intervened in the investigation to assess the need for some inspections.