An A319 crew became distracted while comparing the FMS track of the ord tride one RNAV arrival; ILS ...

Attributes
ACN	1129611
Time
Date	201311
Local Time Of Day	0601-1200
Place
Locale Reference	ZAU.ARTCC
State Reference	IL
Environment
Light	Daylight
Aircraft 1
Make Model Name	Airbus 318/319/320/321 Undifferentiated
Operating Under FAR Part	Part 121
Flight Phase	Descent
Route In Use	STAR TRIDE ONE RNAV
Flight Plan	IFR
Component
Aircraft Component	FMS/FMC
Person 1
Function	First Officer Pilot Not Flying
Events
Anomaly	Deviation - Altitude Crossing Restriction Not Met Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy

Narrative:

After briefing the descent/arrival tride.1 runway 10C into ord we were discussing an apparent discrepancy between the arrival chart and what the FMS was displaying. (Chart shows gibns to jukic then 090 heading; FMS showed gibns to bairy [ILS 10C IAF] we never did figure out which was right). We were given clearance to cross 20 south vinca at FL330. Pilot flying dialed in 330 and proper crosschecks and callouts were made. Pilot flying then entered vinca/-20 in the mcdu. We got distracted trying to figure out the discrepancy and started down late. During the early part of the descent ATC queried us if we were descending and would we make the crossing. I replied we would not; we would be a bit high. ATC re-cleared us to descend to FL330. We replied we would expedite to FL330. One of us should have been aviating.

Original NASA ASRS Text

Title: An A319 crew became distracted while comparing the FMS track of the ORD TRIDE ONE RNAV Arrival; ILS 10C which indicated GIBNS direct BAIRY while the paper chart indicated GIBNS; JUKIC then heading 090. The crew failed to begin a descent for a crossing restriction.

Narrative: After briefing the descent/arrival TRIDE.1 Runway 10C into ORD we were discussing an apparent discrepancy between the Arrival Chart and what the FMS was displaying. (Chart shows GIBNS to JUKIC then 090 HDG; FMS showed GIBNS to BAIRY [ILS 10C IAF] we never did figure out which was right). We were given clearance to cross 20 south VINCA at FL330. Pilot flying dialed in 330 and proper crosschecks and callouts were made. Pilot flying then entered VINCA/-20 in the MCDU. We got distracted trying to figure out the discrepancy and started down late. During the early part of the descent ATC queried us if we were descending and would we make the crossing. I replied we would not; we would be a bit high. ATC re-cleared us to descend to FL330. We replied we would expedite to FL330. One of us should have been aviating.

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.

An A319 crew became distracted while comparing the FMS track of the ord tride one RNAV arrival; ILS 10C which indicated gibns direct bairy while the paper chart indicated gibns; jukic then heading 090. The crew failed to begin a descent for a crossing restriction.