AD NUMBER: 2015-21-03

PRODUCT: Certain Airbus Model A330-243, -341, -342, and -343 airplanes.

ACTION: Final Rule; removal

SUMMARY: The FAA is removing Airworthiness Directive (AD) 2010-08-08, which applied to the products listed above.

AD 2010-08-08 required deactivating the water scavenge automatic operation and revising the Limitations section of the airplane flight manual (AFM). The FAA is also removing AD 2011-06-04, which applied to certain Airbus Model A330-243F airplanes. AD 2011-06-04 required revising the Limitations section of the AFM.

The FAA issued ADs 2010-08-08 and 2011-06-04 to prevent fuel flow restriction, caused by ice, resulting in a possible engine surge or stall condition, and the engine being unable to provide the commanded thrust. Since we issued AD 2010-08-08 and AD 2011-06-04, we received new data indicating that the water scavenge system (WSS) operation does not induce any risk of fuel feed system (including the engine) blockage by ice on the pipework or pump inlets.

The FAA has also determined that the risk of fuel flow restriction by ice at the fuel oil heat exchanger (FOHE) interface on airplanes equipped with Rolls-Royce Trent 700 engines is now addressed by a redesigned FOHE, which incorporates enhanced anti-icing and de-icing performance.

DATES: This AD becomes effective November 23, 2015.

FMI: AD