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Air carrier captain reported ATC expected the aircraft to flyover terpz; but the aircraft's FMS; as well as the departure plate; has terpz listed as a flyby point.
| Attributes | |
| ACN | 1515945 |
| Time | |
| Date | 201802 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | BWI.Airport |
| State Reference | MD |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | Widebody Low Wing 2 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Route In Use | SID TERPZ6 |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Procedural Clearance Deviation - Track / Heading All Types |
Narrative:
The following happened to me two days in a row. We departed bwi on the terpz departure with the ramay transition. Shortly after passing wonce; the airplane started a lead turn to foxhl. Since terpz is not a flyover point; we wound up south of it due to the lead turn. ATC asked us where we were going. They seemed surprised the aircraft started the turn to foxhl prior to reaching terpz. They mentioned many airplanes had been doing the same thing. One of the following should happen: educate ATC that our aircraft will start the turn to foxhl prior to reaching terpz or if ATC needs us to fly over terpz; change the database so it is a flyover point. This event was either caused by a database deficiency or ATC misunderstanding.
Original NASA ASRS Text
Title: Air carrier Captain reported ATC expected the aircraft to flyover TERPZ; but the aircraft's FMS; as well as the departure plate; has TERPZ listed as a flyby point.
Narrative: The following happened to me two days in a row. We departed BWI on the TERPZ departure with the RAMAY transition. Shortly after passing WONCE; the airplane started a lead turn to FOXHL. Since TERPZ is not a flyover point; we wound up south of it due to the lead turn. ATC asked us where we were going. They seemed surprised the aircraft started the turn to FOXHL prior to reaching TERPZ. They mentioned many airplanes had been doing the same thing. One of the following should happen: Educate ATC that our aircraft will start the turn to FOXHL prior to reaching TERPZ or if ATC needs us to fly over TERPZ; change the database so it is a flyover point. This event was either caused by a database deficiency or ATC misunderstanding.
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.