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B737 ng first officer reported getting low and slow on approach to phx due to automation dependency.
| Attributes | |
| ACN | 1699683 |
| Time | |
| Date | 201911 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | PHX.Airport |
| State Reference | AZ |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Make Model Name | B737 Next Generation Undifferentiated |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Route In Use | STAR HYDRR1 |
| Flight Plan | IFR |
| Person 1 | |
| Function | First Officer Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine |
| Experience | Flight Crew Total 4500 |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy Deviation - Speed All Types |
Narrative:
I was the pilot flying on the HYDRR1 arrival to 25L approach. Assigned a heading of 290 to intercept the final approach course at an altitude of 4;000 feet and cleared for the visual approach. Speed window open with 180 kts set; flaps 5; auto throttles engaged. From a 290 heading and my situational awareness; I saw that we were going to intercept glide slope well before the localizer in fact beyond scade. I started a lvl change descent to 3;000 feet. I retarded the throttles to idle to begin the descent. Pilot monitoring (captain) asked that I go altitude hold immediately to honor the class B airspace below us. I complied and the altitude window settled at around 3;900 feet. I started to set up to reenter VNAV path when I noticed the airspeed bleeding through 160 kts at the same time the captain called airspeed. I immediately advanced the throttles to almost the stops and disengaged the autopilot. Airspeed I believe bottomed out around 155 kts and then quickly recovered to 175 kts with no altitude loss. From there it was a routine if tense approach and landing.
Original NASA ASRS Text
Title: B737 NG First Officer reported getting low and slow on approach to PHX due to automation dependency.
Narrative: I was the Pilot Flying on the HYDRR1 arrival to 25L approach. Assigned a heading of 290 to intercept the final approach course at an altitude of 4;000 feet and cleared for the visual approach. Speed window open with 180 kts set; flaps 5; auto throttles engaged. From a 290 heading and my situational awareness; I saw that we were going to intercept glide slope well before the localizer in fact beyond SCADE. I started a LVL CHANGE descent to 3;000 feet. I retarded the throttles to idle to begin the descent. Pilot Monitoring (Captain) asked that I go altitude hold immediately to honor the Class B airspace below us. I complied and the altitude window settled at around 3;900 feet. I started to set up to reenter VNAV path when I noticed the airspeed bleeding through 160 kts at the same time the Captain called airspeed. I immediately advanced the throttles to almost the stops and disengaged the autopilot. Airspeed I believe bottomed out around 155 kts and then quickly recovered to 175 kts with no altitude loss. From there it was a routine if tense approach and landing.
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.