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An air carrier flight crew missed a crossing restriction and then failed to descend on the phl bunts one STAR because they were unfamiliar with new automation in their aircraft.
| Attributes | |
| ACN | 882960 |
| Time | |
| Date | 201004 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | PHL.Airport |
| State Reference | PA |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Large Transport Low Wing 2 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Descent |
| Route In Use | STAR BUNTS ONE |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | FMS/FMC |
| Person 1 | |
| Function | First Officer |
| Experience | Flight Crew Last 90 Days 154 Flight Crew Type 3500 |
| Person 2 | |
| Function | Pilot Not Flying Captain |
| Experience | Flight Crew Last 90 Days 150 |
| Events | |
| Anomaly | Deviation - Altitude Crossing Restriction Not Met Deviation - Procedural Clearance |
Narrative:
In descent to phl; we were given cross cofax at 25;000 ft. While descending for that we were given cross cofax at or below 25;000 ft; descend to 24;000 ft. I set 24;000 ft in MCP; but did not make the restriction 25;000 ft B in the box. Crossing cofax we were given a new crossing restriction of 20 west of lrp at 18;000 ft. This involved building a point prior to next point; which was bouhn. While putting that in; we missed that the aircraft did not continue the descent to 24;000 ft. ATC then pointed out to us that we needed to descend to 24;000 ft.
Original NASA ASRS Text
Title: An air carrier flight crew missed a crossing restriction and then failed to descend on the PHL BUNTS ONE STAR because they were unfamiliar with new automation in their aircraft.
Narrative: In descent to PHL; we were given cross COFAX at 25;000 FT. While descending for that we were given cross COFAX at or below 25;000 FT; descend to 24;000 FT. I set 24;000 FT in MCP; but did not make the restriction 25;000 FT B in the box. Crossing COFAX we were given a new crossing restriction of 20 west of LRP at 18;000 FT. This involved building a point prior to next point; which was BOUHN. While putting that in; we missed that the aircraft did not continue the descent to 24;000 FT. ATC then pointed out to us that we needed to descend to 24;000 FT.
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.