MINNEAPOLIS // Three months before a superjumbo jet engine blew apart and forced an emergency landing, European safety regulators had relaxed their inspection order for the same section of the engine implicated in the accident.
In January, the European Aviation Safety Agency (Easa) required airlines to inspect for wear on the shaft that holds one of the Rolls-Royce Trent 900 engine's turbine discs. The more wear they found, the sooner future inspections would be required.
In August, after Rolls-Royce had inspected several engines, Easa revised its directive. Previously, airlines had to calculate how worn out the part was based on the worst spot. Under the revised directive they calculate the average wear over the entire part.
And previously they had to assume the part was wearing out at a worst-case rate. The new rule allows them to calculate the wear rate on each engine. That meant less frequent inspections, which the revised directive said were "sufficient to prevent unacceptable wear."
The European directives warned of the potential for "in-flight shut down, oil migration and oil fire." The US Federal Aviation Administration went further in adopting a version of the European directive in September, warning of an "uncontained failure of the engine, and damage to the airplane."
Some of the parts inside jet engines rotate faster than the speed of sound. Engines are designed so that even if part of one shatters, pieces of metal are not sent rocketing away from the engine. An "uncontained engine failure" with shrapnel-like engine pieces that can damage other parts of the plane is rare and extremely dangerous.
That is what happened on November 4. Investigators have said that leaking oil caused a fire in the engine of a Qantas A380 that heated metal parts and made the motor disintegrate over Indonesia before the jetliner returned safely to Singapore. Experts say the fire damaged vital systems on the plane, which had been bound for Sydney.
The safety order was not addressing the exact same problem that caused the Qantas engine to disintegrate, but is very similar and involved a turbine next to the one that broke apart, said Chuck Eastlake, a former professor of aerospace engineering at Embry-Riddle University in Daytona Beach, Florida.
The decision to relax the Easa order was likely based on inspections that gave engineers confidence that the wear on parts that could cause an oil leak was predictable enough to allow more time to elapse, Eastlake said. In hindsight that appears not to have been the case, he said.
"That kind of stuff is always a judgment call based on experience," Mr Eastlake said. "It's hard to specifically justify a decision like that because it isn't a matter of plugging numbers into a calculator and out comes an answer."
John Cox, an aviation safety consultant and former airline pilot, said it's a question of balancing "what is reasonable to ask the airlines to do against safety."
"The problem is we had a catastrophic failure. It turned out that apparently at least one engine had substantial wear that inspections didn't pick up," he said in a telephone interview from London.
No one from Easa was available to talk about the directive.
The agency usually takes the lead in issuing safety orders involving aircraft, engines and other equipment made by European manufacturers, just as the FAA does in cases that involve US manufacturers.
The Qantas spokesman, Tom Woodward, said Qantas has complied with all safety orders.
Rolls-Royce Group PLC said in an update to investors on Friday that the Qantas engine incident was due to failure in a specific component that caused an engine fire and "the release of the intermediate pressure turbine disc." The company will be replacing the relevant part "according to an agreed programme" as inspections on the engine continue in association with aviation regulators, it said. The company did not provide details.
The disc, a plate that holds the turbine blades that move air through the motor, broke apart.
Three airlines - Qantas, Singapore and Lufthansa - fly the 20 A380s that use Trent 900 engines. Qantas and Singapore have grounded several of those after each found oil leaks on three engines.
Lufthansa spokesman Thomas Jachnow said the German airline has been told "that Rolls-Royce will gradually replace a modular part of the engine on all Trent 900 engines." He added that the "exact parts to be replaced haven't been finalised yet."
The Qantas chief executive, Alan Joyce, said yesterday that he was pleased with the progress of the Rolls-Royce investigation. But he would not give a timeline on when Qantas' six A380s, grounded since the failure, would be back in the air.
* Associated Press
What are the influencer academy modules?
- Mastery of audio-visual content creation.
- Cinematography, shots and movement.
- All aspects of post-production.
- Emerging technologies and VFX with AI and CGI.
- Understanding of marketing objectives and audience engagement.
- Tourism industry knowledge.
- Professional ethics.
Company profile
Name: Fruitful Day
Founders: Marie-Christine Luijckx, Lyla Dalal AlRawi, Lindsey Fournie
Based: Dubai, UAE
Founded: 2015
Number of employees: 30
Sector: F&B
Funding so far: Dh3 million
Future funding plans: None at present
Future markets: Saudi Arabia, potentially Kuwait and other GCC countries
Sunday's fixtures
- Bournemouth v Southampton, 5.30pm
- Manchester City v West Ham United, 8pm
The candidates
Dr Ayham Ammora, scientist and business executive
Ali Azeem, business leader
Tony Booth, professor of education
Lord Browne, former BP chief executive
Dr Mohamed El-Erian, economist
Professor Wyn Evans, astrophysicist
Dr Mark Mann, scientist
Gina MIller, anti-Brexit campaigner
Lord Smith, former Cabinet minister
Sandi Toksvig, broadcaster
Volvo ES90 Specs
Engine: Electric single motor (96kW), twin motor (106kW) and twin motor performance (106kW)
Power: 333hp, 449hp, 680hp
Torque: 480Nm, 670Nm, 870Nm
On sale: Later in 2025 or early 2026, depending on region
Price: Exact regional pricing TBA
If you go
Flights
Emirates flies from Dubai to Phnom Penh with a stop in Yangon from Dh3,075, and Etihad flies from Abu Dhabi to Phnom Penh with its partner Bangkok Airlines from Dh2,763. These trips take about nine hours each and both include taxes. From there, a road transfer takes at least four hours; airlines including KC Airlines (www.kcairlines.com) offer quick connecting flights from Phnom Penh to Sihanoukville from about $100 (Dh367) return including taxes. Air Asia, Malindo Air and Malaysian Airlines fly direct from Kuala Lumpur to Sihanoukville from $54 each way. Next year, direct flights are due to launch between Bangkok and Sihanoukville, which will cut the journey time by a third.
The stay
Rooms at Alila Villas Koh Russey (www.alilahotels.com/ kohrussey) cost from $385 per night including taxes.
SPEC%20SHEET
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Key facilities
- Olympic-size swimming pool with a split bulkhead for multi-use configurations, including water polo and 50m/25m training lanes
- Premier League-standard football pitch
- 400m Olympic running track
- NBA-spec basketball court with auditorium
- 600-seat auditorium
- Spaces for historical and cultural exploration
- An elevated football field that doubles as a helipad
- Specialist robotics and science laboratories
- AR and VR-enabled learning centres
- Disruption Lab and Research Centre for developing entrepreneurial skills
MATCH INFO
Uefa Champions League final:
Who: Real Madrid v Liverpool
Where: NSC Olimpiyskiy Stadium, Kiev, Ukraine
When: Saturday, May 26, 10.45pm (UAE)
TV: Match on BeIN Sports
What are NFTs?
Are non-fungible tokens a currency, asset, or a licensing instrument? Arnab Das, global market strategist EMEA at Invesco, says they are mix of all of three.
You can buy, hold and use NFTs just like US dollars and Bitcoins. “They can appreciate in value and even produce cash flows.”
However, while money is fungible, NFTs are not. “One Bitcoin, dollar, euro or dirham is largely indistinguishable from the next. Nothing ties a dollar bill to a particular owner, for example. Nor does it tie you to to any goods, services or assets you bought with that currency. In contrast, NFTs confer specific ownership,” Mr Das says.
This makes NFTs closer to a piece of intellectual property such as a work of art or licence, as you can claim royalties or profit by exchanging it at a higher value later, Mr Das says. “They could provide a sustainable income stream.”
This income will depend on future demand and use, which makes NFTs difficult to value. “However, there is a credible use case for many forms of intellectual property, notably art, songs, videos,” Mr Das says.
AL%20BOOM
%3Cp%20style%3D%22text-align%3Ajustify%3B%22%3E%26nbsp%3B%26nbsp%3B%26nbsp%3BDirector%3AAssad%20Al%20Waslati%26nbsp%3B%3C%2Fp%3E%0A%3Cp%20style%3D%22text-align%3Ajustify%3B%22%3E%0DStarring%3A%20Omar%20Al%20Mulla%2C%20Badr%20Hakami%20and%20Rehab%20Al%20Attar%0D%3Cbr%3E%0D%3Cbr%3EStreaming%20on%3A%20ADtv%0D%3Cbr%3E%0D%3Cbr%3ERating%3A%203.5%2F5%0D%3Cbr%3E%0D%3Cbr%3E%3C%2Fp%3E%0A
How it works
Each player begins with one of the great empires of history, from Julius Caesar's Rome to Ramses of Egypt, spread over Europe and the Middle East.
Round by round, the player expands their empire. The more land they have, the more money they can take from their coffers for each go.
As unruled land and soldiers are acquired, players must feed them. When a player comes up against land held by another army, they can choose to battle for supremacy.
A dice-based battle system is used and players can get the edge on their enemy with by deploying a renowned hero on the battlefield.
Players that lose battles and land will find their coffers dwindle and troops go hungry. The end goal? Global domination of course.
THE CLOWN OF GAZA
Director: Abdulrahman Sabbah
Starring: Alaa Meqdad
Rating: 4/5
UAE currency: the story behind the money in your pockets
Tips to stay safe during hot weather
- Stay hydrated: Drink plenty of fluids, especially water. Avoid alcohol and caffeine, which can increase dehydration.
- Seek cool environments: Use air conditioning, fans, or visit community spaces with climate control.
- Limit outdoor activities: Avoid strenuous activity during peak heat. If outside, seek shade and wear a wide-brimmed hat.
- Dress appropriately: Wear lightweight, loose and light-coloured clothing to facilitate heat loss.
- Check on vulnerable people: Regularly check in on elderly neighbours, young children and those with health conditions.
- Home adaptations: Use blinds or curtains to block sunlight, avoid using ovens or stoves, and ventilate living spaces during cooler hours.
- Recognise heat illness: Learn the signs of heat exhaustion and heat stroke (dizziness, confusion, rapid pulse, nausea), and seek medical attention if symptoms occur.
IF YOU GO
The flights: FlyDubai offers direct flights to Catania Airport from Dubai International Terminal 2 daily with return fares starting from Dh1,895.
The details: Access to the 2,900-metre elevation point at Mount Etna by cable car and 4x4 transport vehicle cost around €57.50 (Dh248) per adult. Entry into Teatro Greco costs €10 (Dh43). For more go to www.visitsicily.info
Where to stay: Hilton Giardini Naxos offers beachfront access and accessible to Taormina and Mount Etna. Rooms start from around €130 (Dh561) per night, including taxes.
BOSH!'s pantry essentials
Nutritional yeast
This is Firth's pick and an ingredient he says, "gives you an instant cheesy flavour". He advises making your own cream cheese with it or simply using it to whip up a mac and cheese or wholesome lasagne. It's available in organic and specialist grocery stores across the UAE.
Seeds
"We've got a big jar of mixed seeds in our kitchen," Theasby explains. "That's what you use to make a bolognese or pie or salad: just grab a handful of seeds and sprinkle them over the top. It's a really good way to make sure you're getting your omegas."
Umami flavours
"I could say soya sauce, but I'll say all umami-makers and have them in the same batch," says Firth. He suggests having items such as Marmite, balsamic vinegar and other general, dark, umami-tasting products in your cupboard "to make your bolognese a little bit more 'umptious'".
Onions and garlic
"If you've got them, you can cook basically anything from that base," says Theasby. "These ingredients are so prevalent in every world cuisine and if you've got them in your cupboard, then you know you've got the foundation of a really nice meal."
Your grain of choice
Whether rice, quinoa, pasta or buckwheat, Firth advises always having a stock of your favourite grains in the cupboard. "That you, you have an instant meal and all you have to do is just chuck a bit of veg in."
MATCH INFO
Euro 2020 qualifier
Norway v Spain, Saturday, 10.45pm, UAE
Aggro%20Dr1ft
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More coverage from the Future Forum
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%3Cp%3E%3Cstrong%3EUAE%20fixtures%3C%2Fstrong%3E%3C%2Fp%3E%0A%3Cp%3E25%20April%20%E2%80%93%20Ireland%20v%20UAE*%3Cbr%3E27%20April%20%E2%80%93%20UAE%20v%20Zimbabwe**%3Cbr%3E29%20April%20%E2%80%93%20Netherlands%20v%20UAE*%3Cbr%3E3%20May%20%E2%80%93%20UAE%20v%20Vanuatu*%3Cbr%3E5%20May%20%E2%80%93%20Semi-finals%3Cbr%3E7%20May%20%E2%80%93%20Final%3Cbr%3E%3Cstrong%3EUAE%20squad%3A%20%3C%2Fstrong%3EEsha%20Oza%20(captain)%2C%20Al%20Maseera%20Jahangir%2C%20Avanee%20Patel%2C%20Heena%20Hotchandani%2C%20Indhuja%20Nandakumar%2C%20Kavisha%20Kumari%2C%20Khushi%20Sharma%2C%20Lavanya%20Keny%2C%20Mehak%20Thakur%2C%20Rinitha%20Rajith%2C%20Samaira%20Dharnidharka%2C%20Siya%20Gokhale%2C%20Suraksha%20Kotte%2C%20Theertha%20Satish%2C%20Vaishnave%20Mahesh.%3C%2Fp%3E%0A%3Cp%3E*Zayed%20Cricket%20Stadium%3C%2Fp%3E%0A%3Cp%3E**Tolerance%20Oval%3C%2Fp%3E%0A
Global state-owned investor ranking by size
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United States
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China
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UAE
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Japan
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5
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Norway
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Canada
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Singapore
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Australia
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Saudi Arabia
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South Korea
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MOST%20POLLUTED%20COUNTRIES%20IN%20THE%20WORLD
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Need to know
Unlike other mobile wallets and payment apps, a unique feature of eWallet is that there is no need to have a bank account, credit or debit card to do digital payments.
Customers only need a valid Emirates ID and a working UAE mobile number to register for eWallet account.
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UAE currency: the story behind the money in your pockets
