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An air carrier pilot reports the loss of situational awareness caused by the raas system's alert volume interfering with normal internal and external VHF communication.
| Attributes | |
| ACN | 848760 |
| Time | |
| Date | 200908 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | Medium Large Transport Low Wing 2 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Takeoff |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | GPWS |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Events | |
| Anomaly | ATC Issue All Types Aircraft Equipment Problem Critical |
Narrative:
Taking the runway on a position-and-hold clearance; tower made a transmission that began with our callsign that was rendered completely unintelligible by the raas announcement that we were on the runway. We waited for the inane interruption to finish; then asked tower if they perhaps had a new clearance for us. They did indeed - a clearance to takeoff. Because we were actually able to hear the clearance the second time it was issued; we accepted it and took off. We were able to hear our callsign before the raas announcement blared and covered the rest of tower's transmission. We waited for raas to shut up; then asked tower if they had tried to contact us. Get rid of raas. Comments by the other pilot; as we discussed the incident once above 10;000': 'I hate the raas also; I really should be filing reports every time this happens.' 'it's only a matter of time before raas causes an accident.'
Original NASA ASRS Text
Title: An air carrier pilot reports the loss of situational awareness caused by the RAAS system's alert volume interfering with normal internal and external VHF communication.
Narrative: Taking the runway on a position-and-hold clearance; Tower made a transmission that began with our callsign that was rendered completely unintelligible by the RAAS announcement that we were on the runway. We waited for the inane interruption to finish; then asked Tower if they perhaps had a new clearance for us. They did indeed - a clearance to takeoff. Because we were actually able to hear the clearance the second time it was issued; we accepted it and took off. We were able to hear our callsign before the RAAS announcement blared and covered the rest of Tower's transmission. We waited for RAAS to shut up; then asked Tower if they had tried to contact us. Get rid of RAAS. Comments by the other pilot; as we discussed the incident once above 10;000': 'I hate the RAAS also; I really should be filing reports every time this happens.' 'It's only a matter of time before RAAS causes an accident.'
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.