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B757 captain reported a track deviation occurred on arrival into den following the assignment of three different arrivals from ATC.
| Attributes | |
| ACN | 1644740 |
| Time | |
| Date | 201905 |
| Place | |
| Locale Reference | DEN.Airport |
| State Reference | CO |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain |
| Qualification | Flight Crew Instrument Flight Crew Commercial Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine |
| Experience | Flight Crew Last 90 Days 99 Flight Crew Type 2051 |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types |
Narrative:
Upon arrival into den; we received 3 different arrivals (anchr; wahuu; and kohoe). Each installation required sequencing of the arrival to the RNAV (rnp) Z 35R. We accomplished and verified each time; but on the final sequencing donnt and baark did not drop out so that when cleared the approach; with LNAV and VNAV engaged; the aircraft on autopilot did not turn at msims or descend out of 11;000 feet as required. At the same time we became aware of this discrepancy; ATC called; queried and canceled approach clearance; with a vector and descent to 9;000 feet assigned. Once on the vector for a visual final; the aircraft was flown manually to land on 35R. Tower directed us to call TRACON upon gate arrival. I spoke with a supervisor; and explained the error in sequencing and subsequent actions to comply with ATC guidance. No further discussion ensued and I was informed there was no loss of separation.
Original NASA ASRS Text
Title: B757 Captain reported a track deviation occurred on arrival into DEN following the assignment of three different arrivals from ATC.
Narrative: Upon arrival into DEN; we received 3 different arrivals (ANCHR; WAHUU; and KOHOE). Each installation required sequencing of the arrival to the RNAV (RNP) Z 35R. We accomplished and verified each time; but on the final sequencing DONNT and BAARK did not drop out so that when cleared the approach; with LNAV and VNAV engaged; the aircraft on autopilot did not turn at MSIMS or descend out of 11;000 feet as required. At the same time we became aware of this discrepancy; ATC called; queried and canceled approach clearance; with a vector and descent to 9;000 feet assigned. Once on the vector for a visual final; the aircraft was flown manually to land on 35R. Tower directed us to call TRACON upon gate arrival. I spoke with a Supervisor; and explained the error in sequencing and subsequent actions to comply with ATC guidance. No further discussion ensued and I was informed there was no loss of separation.
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.