Narrative:

Egpws warning on descent vectored away from STAR arrival. Flying at 5;000 ft we received a vector and new descent altitude (heading 250 or 270 and altitude 4;000 ft). I activated GPWS button on my side (first officer); about 3 seconds later received aural 'terrain' alert. The captain (pilot flying) executed escape maneuver and I advised the approach controller about it. She responded with a new heading (heading 290 and told us to go back to 5;000 when able). Shortly after that she handed us over to next controller. Location: last part on COMMO1 arrival for landing runway 11 oak. Weather: IFR rain with mixed intensity. Controller appeared to be casual and almost annoyed as if this wasn't the first airbus having to do an escape maneuver that day following their/her instructions. This is only my personal (pilot not flying) observation. Just like in the simulator.

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Original NASA ASRS Text

Title: An A319 crew executed an escape maneuver after the TERRAIN warning alerted while flying the OAK COMMO1 arrival to Runway 11.

Narrative: EGPWS warning on descent vectored away from STAR arrival. Flying at 5;000 FT we received a vector and new descent altitude (heading 250 or 270 and altitude 4;000 FT). I activated GPWS button on my side (First Officer); about 3 seconds later received aural 'TERRAIN' alert. The Captain (pilot flying) executed escape maneuver and I advised the Approach Controller about it. She responded with a new heading (heading 290 and told us to go back to 5;000 when able). Shortly after that she handed us over to next controller. Location: last part on COMMO1 Arrival for landing Runway 11 OAK. Weather: IFR rain with mixed intensity. Controller appeared to be casual and almost annoyed as if this wasn't the first AIRBUS having to do an escape maneuver that day following their/her instructions. This is only my personal (pilot not flying) observation. Just like in the simulator.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.