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The time required for the B737-700 flight crew to program an ATC assigned approach/runway change prevented them from initiating a descent required by their RNAV STAR assignment.
| Attributes | |
| ACN | 1126787 |
| Time | |
| Date | 201311 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZLA.ARTCC |
| State Reference | CA |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Descent |
| Route In Use | Visual Approach |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | FMS/FMC |
| Person 1 | |
| Function | First Officer |
| Experience | Flight Crew Last 90 Days 136 |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Altitude Undershoot Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy |
Narrative:
ATC cleared us for a different approach and runway. The time it took to program the FMC caused us to be slightly delayed in descending to our next altitude. ATC asked us if we were descending via to make sure and we quickly got right back on profile.the late change to the RNAV visual 19R approach was the reason. The FMC doesn't load all the altitudes for you so you have to manually put them in and that little bit of extra time was just enough to make us late descending.
Original NASA ASRS Text
Title: The time required for the B737-700 flight crew to program an ATC assigned approach/runway change prevented them from initiating a descent required by their RNAV STAR assignment.
Narrative: ATC cleared us for a different approach and runway. The time it took to program the FMC caused us to be slightly delayed in descending to our next altitude. ATC asked us if we were descending via to make sure and we quickly got right back on profile.The late change to the RNAV Visual 19R approach was the reason. The FMC doesn't load all the altitudes for you so you have to manually put them in and that little bit of extra time was just enough to make us late descending.
Data retrieved from NASA's ASRS site as of July 2013 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.