Hong Kong authorities suggest that a potential engine issue with Cathay Pacific's A350 plane could lead to substantial harm.
Cathay Pacific cancelled numerous flights at the start of September, stating the necessity to examine their A350 aircraft following an engine problem causing a Zurich-bound flight to divert back to Hong Kong shortly after departing on September 2.
The airlines had earlier pinpointed an engine part malfunction on the affected plane, yet decided not to disclose the specific problem.
On Thursday, the Hong Kong Air Accident Investigation Authority (AAIA) reported discovering a noticeable hole in the fuel hose, accompanied by black soot signaling signs of a fire, during their investigation.
The AAIA proposed it was plausible for fuel to leak via the ruptured hose, igniting a fire that could spread to the engine's surrounding components.
They stated that if not promptly attended to and fixed, this situation, combined with subsequent failures, could escalate into a more severe engine fire, possibly inflicting significant damage to the aircraft.
Burn marks were also identified beneath the aircraft's two reverse thrusts, which redirect exhaust for a decelerating impact upon landing, according to an initial report published by the authority.
The AAIA urged the European Union Aviation Safety Agency to mandate Rolls-Royce, the manufacturer of the popular A350 long-haul jets' engines, to formulate continued airworthiness information regarding the issue.
Consequently, Cathay Pacific carried out an in-depth inspection of its 48 A350 aircraft and replaced parts on 15 planes.
The A350 family, consisting of two models, utilizes two distinct Trent XWB turbofan engines from Rolls-Royce.
CNN has contacted Cathay Pacific and Rolls-Royce for comment.
Despite the engine issue leading to flight cancellations and even a diversion, Cathay Pacific continues to operate its business with the remaining A350 aircraft, carrying out necessary inspections and maintenance to ensure safety.
The discovery of a fuel hose issue and potential engine fire by the Hong Kong Air Accident Investigation Authority underscores the importance of regular maintenance and checks in the aviation business.