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B737-300 first officer reported the flight crew descended below a crossing restriction on approach when they lost track of the FMS mode.
| Attributes | |
| ACN | 1187916 |
| Time | |
| Date | 201407 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | BNA.Airport |
| State Reference | TN |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Descent |
| Route In Use | Visual Approach STAR PASLY2 |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | FMS/FMC |
| Person 1 | |
| Function | First Officer |
| Experience | Flight Crew Last 90 Days 96 Flight Crew Type 96 |
| Events | |
| Anomaly | Deviation - Altitude Crossing Restriction Not Met Deviation - Altitude Overshoot Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy |
Narrative:
Told to descend via the STAR. Lowest altitude was 5;000 feet before drand waypoint; which has a 6;000 feet or above restriction. Was given a speed assignment. Went out of VNAV to open speed window and did not reselect VNAV. After passing drand intersection noticed we had descended below restriction. Approach control did not mention the restriction and continued for visual approach and landing. Pilot flying is new to the aircraft and did not notice the aircraft was out of VNAV path.
Original NASA ASRS Text
Title: B737-300 First Officer reported the flight crew descended below a crossing restriction on approach when they lost track of the FMS mode.
Narrative: Told to descend via the STAR. Lowest altitude was 5;000 feet before DRAND waypoint; which has a 6;000 feet or above restriction. Was given a speed assignment. Went out of VNAV to open Speed Window and did not reselect VNAV. After passing DRAND intersection noticed we had descended below restriction. Approach Control did not mention the restriction and continued for visual approach and landing. Pilot flying is new to the aircraft and did not notice the aircraft was out of VNAV PATH.
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.