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When ATC altered the charted at or above FL240 at hesee on the gibbz RNAV STAR to a hard 'at FL240' the flight crew of the B737 failed to note the crossing at FL270 at phoow just 5.7 NM prior to hesee would make compliance impossible. They crossed hesee some 250 feet high.
| Attributes | |
| ACN | 1049093 |
| Time | |
| Date | 201211 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZDC.ARTCC |
| State Reference | VA |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Descent |
| Route In Use | STAR GIBBZ ONE RNAV |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | FMS/FMC |
| Person 1 | |
| Function | Pilot Flying First Officer |
| Experience | Flight Crew Last 90 Days 210 Flight Crew Total 12000 Flight Crew Type 6000 |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Altitude Crossing Restriction Not Met Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy |
Narrative:
On the gibbz one arrival into iad; washington center told us to cross hesee at FL240. The box is pre-programmed with hesee at or above FL240; so I made the altitude hard. The box also has phoow at FL270; which is the fix 5.7 NM prior to hesee. I did not take the phoow at FL270 out of the box. We crossed phoow on path at FL270; and then were immediately high for hesee at FL240. I selected lvl change and we crossed hesee about 250 feet high. No steep descent after phoow message was received.
Original NASA ASRS Text
Title: When ATC altered the charted at or above FL240 at HESEE on the GIBBZ RNAV STAR to a hard 'at FL240' the flight crew of the B737 failed to note the crossing at FL270 at PHOOW just 5.7 NM prior to HESEE would make compliance impossible. They crossed HESEE some 250 feet high.
Narrative: On the GIBBZ ONE arrival into IAD; Washington Center told us to cross HESEE at FL240. The box is pre-programmed with HESEE at or above FL240; so I made the altitude hard. The box also has PHOOW at FL270; which is the fix 5.7 NM prior to HESEE. I did not take the PHOOW at FL270 out of the box. We crossed PHOOW on path at FL270; and then were immediately high for HESEE at FL240. I selected LVL change and we crossed HESEE about 250 feet high. No steep descent after PHOOW message was received.
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.