Manufacturing giant Rolls-Royce today said it has identified the faulty part behind an engine failure which forced an A380 superjumbo into an emergency landing.
The Derby-based company is rolling out a programme of inspections across all A380s and said it was making efforts to fix the problem.
Rolls said the failure was confined to a specific component in the turbine of the Trent 900 engine, which sparked an oil fire and led to the release of another part - a turbine disc.
Passengers on board Qantas flight QF32 described seeing the engine burst into flames minutes into a journey from Singapore to Sydney last week. Debris was also scattered over Indonesia's Batam island.
The European Aviation Safety Authority yesterday issued an emergency directive demanding regular checks on all Trent 900 engines made by Rolls-Royce.
This forced Qantas, which discovered small oil leaks in engines on three separate aircraft, to prolong the grounding of its A380 fleet.
Singapore Airlines grounded three of its 11 A380s after inspections revealed oil stains, while German airline Lufthansa said it would also perform inspections of engines on its superjumbos.
Chief executive John Rose, who will step down from the company in March after 26 years, said Rolls' response would eventually bring the whole fleet back into service.
He said: 'Safety is the highest priority of Rolls-Royce. This has been demonstrated by the rapid and prudent action we have taken following the Trent 900 incident.'
Mr Rose said the scale of the company's order book and strong balance sheet made Rolls-Royce a 'resilient' business.
Rolls' shares have taken a beating since the engine failure came to light, but the firm soared to the top of the FTSE 100 Index at one stage.
Howard Wheeldon, senior strategist at brokers BGC Partners, said the company had provided sufficient information to calm the market and airlines with A380s.
He said: 'In the coming weeks and months we may learn through the ongoing examination whether we are talking about a component quality issue, an engineering design flaw, a materials related failure or whether there is a relationship to heavy wear and tear.'
He added Rolls-Royce had offered enough reassurance for investors to believe the problem had been resolved, albeit at a high cost that will 'likely run into many millions'.