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C680 captain reported that the pilot flying went into the FMS and selected direct 8000 feet interrupting the scheduled RNAV descent.
| Attributes | |
| ACN | 1440119 |
| Time | |
| Date | 201704 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | BWI.Airport |
| State Reference | MD |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Cessna Citation Sovereign (C680) |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Descent |
| Route In Use | STAR TRISH3 |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Altitude Hold/Capture |
| Person 1 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy |
Narrative:
TRISH3 RNAV arrival bwi - flying pilot briefed STAR altitude restrictions. At FL140 [we were] cleared to descend via the STAR. Non flying pilot (nfp) set 4000 feet into the altitude alert and was confirmed by pilot flying (PF). Aircraft made troyz intersection at FL120 and leveled off. After level off flying pilot went into the FMS prog page and observed top of descent for next fix was scheduled in 1 min. Flying pilot then went into the FMS and selected direct 8000 feet interrupting the scheduled RNAV descent. Aircraft went into an immediate descent. Non flying pilot advised approach FMS had lost VNAV and was unable to comply with STAR. ATC then descended [us] to 4000 feet for radar vectors for [the] 33R visual. CRM or lack thereof! PF was in my opinion unsure [the aircraft] was going to cross the next fix at the correct altitude. PF neglected to communicate concern. PF when unsure needs to communicate with nfp any concerns!
Original NASA ASRS Text
Title: C680 Captain reported that the pilot flying went into the FMS and selected Direct 8000 feet interrupting the scheduled RNAV descent.
Narrative: TRISH3 RNAV Arrival BWI - Flying Pilot Briefed STAR altitude restrictions. At FL140 [we were] cleared to descend via the STAR. Non Flying Pilot (NFP) set 4000 feet into the altitude alert and was confirmed by Pilot Flying (PF). Aircraft made TROYZ Intersection at FL120 and leveled off. After level off Flying Pilot went into the FMS PROG page and observed Top of Descent for next fix was scheduled in 1 min. Flying Pilot then went into the FMS and selected Direct 8000 feet interrupting the scheduled RNAV descent. Aircraft went into an immediate descent. Non flying pilot advised Approach FMS had lost VNAV and was unable to comply with STAR. ATC then descended [us] to 4000 feet for Radar Vectors for [the] 33R Visual. CRM or lack thereof! PF was in my opinion unsure [the aircraft] was going to cross the next fix at the correct altitude. PF neglected to communicate concern. PF when unsure needs to communicate with NFP any concerns!
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.