Sun, Dec 30, 2012
AD NUMBER: 2012-25-08
PRODUCT: Certain serial numbers (S/Ns) of Rolls-Royce plc (RR) RB211-Trent 768-60, 772-60, and 772B-60 turbofan engines.
SUBJECT: Airworthiness Directive 2012-25-08
ACTION: Final Rule
SUMMARY: This AD requires initial and repetitive on-wing or in-shop inspections of the high pressure/intermediate pressure (HP/IP) turbine bearing support oil feed tube outer heat shield. This AD also requires installation of a revised HP/IP turbine bearing support structure as terminating action to the repetitive inspections of the HP/IP turbine bearing support oil feed tube outer heat shield.
This AD was prompted by a report of high oil consumption due to an oil leak from the HP/IP turbine bearing support oil feed tube. The FAA is issuing this AD to prevent failure of the HP turbine disc, uncontained engine failure, and damage to the airplane.
DATES: This AD becomes effective January 10, 2013.
'Yellow Balls' Discovered By Volunteers Studying Spitzer Images Sometimes it takes a village to find new and unusual objects in space. Volunteers scanning tens of thousands of star>[...]
"While this star formed a long time ago, in fact before most of the stars in the Milky Way, we have no indication that any of these planets have now or ever had life on them. At th>[...]
Final Approach Fix The fix from which the final approach (IFR) to an airport is executed and which identifies the beginning of the final approach segment. It is designated on Gover>[...]
New Global Air Ambulance Research Report Shows Projected Growth Of Nearly Ten Percent The Global Air Ambulance market is expected to grow at a CAGR (Compound Annual Growth Rate) of>[...]
Long-Range Sensor System Demonstrated Production Readiness On Super Hornet The F/A-18 Super Hornet infrared search and track (IRST) system, developed and integrated by Boeing and L>[...]