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| | |-+  Final Report Released For QF A-380 Uncontained Engine Failure
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Author Topic: Final Report Released For QF A-380 Uncontained Engine Failure  (Read 7745 times)
joeyb747
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Nothing Like A 747!


« on: June 28, 2013, 07:28:23 PM »

Centering around a fatigue crack in the Oil Feed Stub Pipe in the Rolls Royce Trent 972 that was hanging in the #2 position on QF A380-842 VH-OQA...lots to read here...:

"The Australian Transport Safety Bureau (ATSB) found that a number of oil feed stub pipes within the High Pressure / Intermediate pressure (HP/IP) hub assembly were manufactured with thin wall sections that did not conform to the design specifications. These non-conforming pipes were fitted to Trent 900 engines, including the No. 2 engine on VH-OQA. The thin wall section significantly reduced the life of the oil feed stub pipe on the No. 2 engine so that a fatigue crack developed, ultimately releasing oil during the flight that resulted in an internal oil fire. That fire led to the separation of the intermediate pressure turbine disc from the drive shaft. The disc accelerated and burst with sufficient force that the engine structure could not contain it, releasing high-energy debris."

From:

http://www.atsb.gov.au/media/4148371/ao-2010-089_final.pdf


http://www.avherald.com/h?article=43309c6d/0032&opt=0
« Last Edit: June 29, 2013, 08:10:00 AM by joeyb747 » Logged

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