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Descent procedure delayed, so center controller gives flight crew a wake up call to start on down. Altitude crossing restriction.
| Attributes | |
| ACN | 246157 |
| Time | |
| Date | 199307 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : dtw |
| State Reference | MI |
| Altitude | msl bound lower : 23000 msl bound upper : 27000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob tower : lrp |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Route In Use | arrival other arrival star : star |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 8100 flight time type : 1500 |
| ASRS Report | 246157 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | non adherence : clearance other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : became reoriented other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were at 27000 ft on polar 1 arrival to dtw in a foreign made medium large transport. We were given clearance to cross cetus at and maintain 23000 ft. We set all parameters in our FCU and programmed for an appropriate descent. However, in this medium large transport, one can't preprogram the execute. As the appropriate time came to descend, we were busy doing other tasks such as copying ATIS and configuring the computer for our approach. We overflew the descent point and had to be reminded by center to start down. This is a real trap in the medium large transport's vertical navigation capability. I was well aware of it and still got distracted. The software should be modified to preprogram the execute so this will not happen.
Original NASA ASRS Text
Title: DSCNT PROC DELAYED, SO CTR CTLR GIVES FLC A WAKE UP CALL TO START ON DOWN. ALT XING RESTRICTION.
Narrative: WE WERE AT 27000 FT ON POLAR 1 ARR TO DTW IN A FOREIGN MADE MLG. WE WERE GIVEN CLRNC TO CROSS CETUS AT AND MAINTAIN 23000 FT. WE SET ALL PARAMETERS IN OUR FCU AND PROGRAMMED FOR AN APPROPRIATE DSCNT. HOWEVER, IN THIS MLG, ONE CAN'T PREPROGRAM THE EXECUTE. AS THE APPROPRIATE TIME CAME TO DSND, WE WERE BUSY DOING OTHER TASKS SUCH AS COPYING ATIS AND CONFIGURING THE COMPUTER FOR OUR APCH. WE OVERFLEW THE DSCNT POINT AND HAD TO BE REMINDED BY CTR TO START DOWN. THIS IS A REAL TRAP IN THE MLG'S VERT NAV CAPABILITY. I WAS WELL AWARE OF IT AND STILL GOT DISTRACTED. THE SOFTWARE SHOULD BE MODIFIED TO PREPROGRAM THE EXECUTE SO THIS WILL NOT HAPPEN.
Data retrieved from NASA's ASRS site as of July 2007 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.