37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 852425 |
Time | |
Date | 200909 |
Local Time Of Day | 1801-2400 |
Place | |
Locale Reference | SFO.Airport |
State Reference | CA |
Environment | |
Flight Conditions | VMC |
Aircraft 1 | |
Make Model Name | Boeing Company Undifferentiated or Other Model |
Operating Under FAR Part | Part 121 |
Flight Phase | Taxi |
Flight Plan | IFR |
Component | |
Aircraft Component | GPWS |
Person 1 | |
Function | Pilot Flying Captain Check Pilot |
Experience | Flight Crew Last 90 Days 150 Flight Crew Total 23000 Flight Crew Type 2000 |
Events | |
Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
Some raas feedback on my first flight with raas. Because of previous report's about raas; on taxi out; I had asked my first officer's to listen and try to determine which speakers; one or both the annunciations were coming from; due to the feedback of being too loud. As we taxied out to 28L on F; approaching 1L raas made the callout; 'approaching 1L;' not 'approaching runways;' then 'on 1L;' but as we crossed 1R; no callout was made; either approaching or on that runway. I checked with the other guys; and nobody heard any reference to 1R; neither an approaching 1R or on 1R. I assume we should have heard something. We were definitely less than 40 KTS. Also in our case the voice came just from the upper back speakers; and volume was not too loud; but just as was discussed at the check airman meeting when raas comes on at the same time as the clearance from ATC; I can see how it can confuse the issue; trying to hear; listen; and understand two sets of voice commands if they occur at the same time.
Original NASA ASRS Text
Title: A Check Airman reports on his first experience with RAAS.
Narrative: Some RAAS feedback on my first flight with RAAS. Because of previous report's about RAAS; on taxi out; I had asked my First Officer's to listen and try to determine which speakers; one or both the annunciations were coming from; due to the feedback of being too loud. As we taxied out to 28L on F; approaching 1L RAAS made the callout; 'approaching 1L;' not 'approaching runways;' then 'on 1L;' but as we crossed 1R; no callout was made; either approaching or on that runway. I checked with the other guys; and nobody heard any reference to 1R; neither an approaching 1R or on 1R. I assume we should have heard something. We were definitely less than 40 KTS. Also in our case the voice came just from the upper back speakers; and volume was not too loud; but just as was discussed at the Check Airman meeting when RAAS comes on at the same time as the clearance from ATC; I can see how it can confuse the issue; trying to hear; listen; and understand two sets of voice commands if they occur at the same time.
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.