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A321 captain reports descending below the mayos crossing restriction on the IVANE5 arrival to clt with the aircraft in managed descent. The aircraft is returned to FL240 and managed descent is reengaged without issue for the remainder of the arrival.
| Attributes | |
| ACN | 1236255 |
| Time | |
| Date | 201501 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZDC.ARTCC |
| State Reference | VA |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | A321 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Descent |
| Route In Use | STAR IVANE5 |
| Component | |
| Aircraft Component | FMS/FMC |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Altitude Crossing Restriction Not Met Deviation - Altitude Overshoot Deviation - Procedural Published Material / Policy |
Narrative:
Descending on the ivane 5 RNAV arrival and passing over the mayos fix. The aircraft was on autopilot 1 and in managed descent. The crossing altitudes for mayos are between FL240 and FL260. The aircraft did not initiate a level off at FL240 but continued to descend. Pilot flying intervened by selecting vertical speed zero prior to FL240; however the aircraft did go approximately 500 feet below FL240 before the descent was arrested. After crossing the mayos fix; managed descent was reselected and the aircraft continued the descent on profile with no further deviations.
Original NASA ASRS Text
Title: A321 Captain reports descending below the MAYOS crossing restriction on the IVANE5 arrival to CLT with the aircraft in managed descent. The aircraft is returned to FL240 and managed descent is reengaged without issue for the remainder of the arrival.
Narrative: Descending on the Ivane 5 RNAV arrival and passing over the MAYOS fix. The aircraft was on autopilot 1 and in managed descent. The crossing altitudes for MAYOS are between FL240 and FL260. The aircraft did not initiate a level off at FL240 but continued to descend. Pilot flying intervened by selecting vertical speed zero prior to FL240; however the aircraft did go approximately 500 feet below FL240 before the descent was arrested. After crossing the MAYOS fix; managed descent was reselected and the aircraft continued the descent on profile with no further deviations.
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.