First officer reports the new raas is too loud and blocks important communications.

Attributes
ACN	804657
Time
Date	200809
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Aircraft 1
Controlling Facilities	tracon : zzz.tracon
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	ground : taxi ground : holding
Person 1
Function	flight crew : first officer
ASRS Report	804657
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Blocked three radio calls from ATC and blocked 3 checklist calls today. This system is an intrusion and does not enhance safety. Raas is a safety hazard and I will not be surprised to read that this has caused a runway incursion or accident. I am becoming conditioned to ignoring what the computer says and stopping all cockpit activity when raas is activated. Yesterday during heavy traffic I made tower repeat our position and hold clearance due to raas blocking the transmission. We also made tower repeat takeoff clearance due to raas blocking transmissions. All this with aircraft on final for our runway. Deactivate it now please.

Original NASA ASRS Text

Title: FO RPTS THE NEW RAAS IS TOO LOUD AND BLOCKS IMPORTANT COMS.

Narrative: BLOCKED THREE RADIO CALLS FROM ATC AND BLOCKED 3 CHKLIST CALLS TODAY. THIS SYSTEM IS AN INTRUSION AND DOES NOT ENHANCE SAFETY. RAAS IS A SAFETY HAZARD AND I WILL NOT BE SURPRISED TO READ THAT THIS HAS CAUSED A RWY INCURSION OR ACCIDENT. I AM BECOMING CONDITIONED TO IGNORING WHAT THE COMPUTER SAYS AND STOPPING ALL COCKPIT ACTIVITY WHEN RAAS IS ACTIVATED. YESTERDAY DURING HEAVY TFC I MADE TOWER REPEAT OUR POSITION AND HOLD CLRNC DUE TO RAAS BLOCKING THE TRANSMISSION. WE ALSO MADE TOWER REPEAT TAKEOFF CLRNC DUE TO RAAS BLOCKING TRANSMISSIONS. ALL THIS WITH ACFT ON FINAL FOR OUR RWY. DEACTIVATE IT NOW PLEASE.

Data retrieved from NASA's ASRS site as of May 2009 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.