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A B-737NG flight crew was surprised to note that--when ATC switched their arrival to den from the crede RNAV arrival to the tellr RNAV arrival just prior to waypoint crede (which is a fix on both arrivals)--that; after reprogramming their route and closing route discontinuities; the crede crossing restriction from the crede STAR; FL210A; had remained 'active' instead of changing to the tellr STAR restriction of at or above FL190.
| Attributes | |
| ACN | 1155270 |
| Time | |
| Date | 201403 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZDV.ARTCC |
| State Reference | CO |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Descent |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | FMS/FMC |
| Person 1 | |
| Function | First Officer |
| Experience | Flight Crew Last 90 Days 397 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy |
Narrative:
We were cleared as filed into den via the wollf transition; crede RNAV arrival; crede to be crossed at or above FL210. Just before crede; we were cleared; 'direct to crede; descend via the RNAV arrival.' we were already direct to crede; so we loaded the new arrival in the box and cleared the discontinuities. Here's the rub: on the tellr STAR crede has a restriction of FL190A; not FL210A. However; when you join the new arrival to the route the old crossing restriction stayed active. We caught it during the crew briefing; but this could really screw you if you end up high on the path. This is a gotcha that not many are aware of and den is notorious for doing this. Either educate the pilots; fix this in the FMC programming; or get den to quit constantly changing things in the middle of a descent.
Original NASA ASRS Text
Title: A B-737NG flight crew was surprised to note that--when ATC switched their arrival to DEN from the CREDE RNAV ARR to the TELLR RNAV ARR just prior to waypoint CREDE (which is a fix on both arrivals)--that; after reprogramming their route and closing route discontinuities; the CREDE crossing restriction from the CREDE STAR; FL210A; had remained 'active' instead of changing to the TELLR STAR restriction of at or above FL190.
Narrative: We were cleared as filed into DEN via the WOLLF transition; CREDE RNAV ARR; CREDE to be crossed at or above FL210. Just before CREDE; we were cleared; 'Direct to CREDE; descend via the RNAV ARR.' We were already direct to CREDE; so we loaded the new arrival in the box and cleared the discontinuities. Here's the rub: on the TELLR STAR CREDE has a restriction of FL190A; not FL210A. However; when you join the new arrival to the route the old crossing restriction stayed active. We caught it during the crew briefing; but this could really screw you if you end up high on the path. This is a gotcha that not many are aware of and DEN is notorious for doing this. Either educate the pilots; fix this in the FMC programming; or get DEN to quit constantly changing things in the middle of a descent.
Data retrieved from NASA's ASRS site 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.