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B737-700 flight crew reported a track deviation occurred on the RNAV (rnp) runway 3 approach into abq.
| Attributes | |
| ACN | 1588777 |
| Time | |
| Date | 201810 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ABQ.Airport |
| State Reference | NM |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument |
| Experience | Flight Crew Last 90 Days 444 |
| Person 2 | |
| Function | First Officer Pilot Not Flying |
| Qualification | Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument |
| Experience | Flight Crew Last 90 Days 419 |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy Deviation - Procedural Clearance Deviation - Track / Heading All Types |
Narrative:
On descent into abq we briefed both the RNAV (rnp) Z runway 3 with a backup of the ILS 3. We verified the points; rnp availability forecast (raf) and loaded the appropriate rnp value. We began the approach at tntoe on LNAV/VNAV path. We proceeded to the next fix plnet on the approach. When we overflew plnet on the approach the aircraft flew directly to bilde instead of doing the 7.3 DME arc. Approach control informed us that we were off course and gave us a vector and altitude. We complied and asked for vectors to fly the ILS 3; which we had previously briefed. The approach and landing were uneventful. We debriefed after landing but could not come a conclusion on why the aircraft flew directly to the point and why the 7.3 NM arc was not flown. Possibly confirming in more detail that the arc is confirmed on both du display as well as confirming that it is on the CDU while briefing the approach.
Original NASA ASRS Text
Title: B737-700 flight crew reported a track deviation occurred on the RNAV (RNP) Runway 3 Approach into ABQ.
Narrative: On descent into ABQ we briefed both the RNAV (RNP) Z Runway 3 with a backup of the ILS 3. We verified the points; RNP availability forecast (RAF) and loaded the appropriate RNP value. We began the approach at TNTOE on LNAV/VNAV PATH. We proceeded to the next fix PLNET on the approach. When we overflew PLNET on the approach the aircraft flew directly to BILDE instead of doing the 7.3 DME ARC. Approach Control informed us that we were off course and gave us a vector and altitude. We complied and asked for vectors to fly the ILS 3; which we had previously briefed. The approach and landing were uneventful. We debriefed after landing but could not come a conclusion on why the aircraft flew directly to the point and why the 7.3 NM ARC was not flown. Possibly confirming in more detail that the ARC is confirmed on both DU display as well as confirming that it is on the CDU while briefing the approach.
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.