A321
Flight Crew Air Transport Pilot (ATP)
Human-Machine Interface
Aircraft Equipment Problem Less Severe; Deviation - Altitude Crossing Restriction Not Met; Deviation - Altitude Overshoot; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Became Reoriented; Flight Crew Returned To Clearance
Aircraft; Human Factors
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.
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.