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B737 flight crew reports a track deviation flying the new TERPZ4 departure from runway 15R at bwi. The TERPZ3 had required runway heading after takeoff while the TERPZ4 requires a turn direct pirch. ATC issues a reminder.
| Attributes | |
| ACN | 1246070 |
| Time | |
| Date | 201503 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | BWI.Airport |
| State Reference | MD |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Takeoff |
| Route In Use | SID TERPZ FOUR |
| Flight Plan | IFR |
| Person 1 | |
| Function | First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 165 Flight Crew Type 30 |
| Person 2 | |
| Function | Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 126 Flight Crew Type 30 |
| Events | |
| Anomaly | Deviation - Procedural Clearance Deviation - Track / Heading All Types |
Narrative:
This was the first time either of us would fly the TERPZ4 departure. We briefed the new TERPZ4 departure. We even emphasized the new waypoint; pirch. We were in a -300; so we could not arm LNAV on the ground. We were cleared for takeoff from 15R with the simple phrase 'cleared for takeoff.'at 400 feet AGL; we continued on runway heading. This was the old terpz procedure. At approximately 1;200 feet AGL; we realized we needed to begin our turn to pirch. This turn should have been started at 667 feet MSL (524 feet AGL). We engaged LNAV to begin the turn. At this time tower 'reminded' us to turn to pirch. We acknowledged their call and continued our turn to follow the departure. The rest of the flight was uneventful. The new departure procedure is significantly different from the old SID; which was in place for many years.
Original NASA ASRS Text
Title: B737 flight crew reports a track deviation flying the new TERPZ4 departure from Runway 15R at BWI. The TERPZ3 had required runway heading after takeoff while the TERPZ4 requires a turn direct PIRCH. ATC issues a reminder.
Narrative: This was the first time either of us would fly the TERPZ4 Departure. We briefed the new TERPZ4 departure. We even emphasized the new waypoint; PIRCH. We were in a -300; so we could not arm LNAV on the ground. We were cleared for takeoff from 15R with the simple phrase 'cleared for takeoff.'At 400 Feet AGL; we continued on runway heading. This was the old TERPZ procedure. At approximately 1;200 Feet AGL; we realized we needed to begin our turn to PIRCH. This turn should have been started at 667 Feet MSL (524 Feet AGL). We engaged LNAV to begin the turn. At this time Tower 'reminded' us to turn to PIRCH. We acknowledged their call and continued our turn to follow the departure. The rest of the flight was uneventful. The new departure procedure is significantly different from the old SID; which was in place for many years.
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.