 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Large transport flight crew reported receiving a terrain warning after descending below the glideslope on a visual approach to boi.
| Attributes | |
| ACN | 1590999 |
| Time | |
| Date | 201811 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | BOI.Airport |
| State Reference | ID |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | Large Transport Low Wing 2 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Route In Use | Visual Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Approach First Officer Pilot Flying |
| Qualification | Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Approach Captain Pilot Not Flying |
| Qualification | Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy Flight Deck / Cabin / Aircraft Event Other / Unknown Inflight Event / Encounter CFTT / CFIT |
Narrative:
[We were] descending on the spudd arrival and cleared for the visual to runway 28 at kboi. After seeing the airport and being cleared for the visual we turned toward the localizer and continued descending. My best estimate of altitude was around 6000 feet received a 'terrain pull up' warning from the GPWS. We leveled off and executed the proper terrain avoidance procedure and contemplated continuing the approach but then decided to execute a missed approach. We entered the pattern and came back around to land again on runway 28 uneventfully. I was unfamiliar with the airport and was not yet on the localizer or glideslope as I descended and my closure to the terrain became too rapid. I should have had ATC keep vectoring me until I was on the ILS before calling the visual. I should have stayed higher throughout the visual approach.
Original NASA ASRS Text
Title: Large Transport flight crew reported receiving a terrain warning after descending below the glideslope on a visual approach to BOI.
Narrative: [We were] descending on the SPUDD arrival and cleared for the visual to runway 28 at KBOI. After seeing the airport and being cleared for the visual we turned toward the localizer and continued descending. My best estimate of altitude was around 6000 feet received a 'terrain pull up' warning from the GPWS. We leveled off and executed the proper terrain avoidance procedure and contemplated continuing the approach but then decided to execute a missed approach. We entered the pattern and came back around to land again on runway 28 uneventfully. I was unfamiliar with the airport and was not yet on the localizer or glideslope as I descended and my closure to the terrain became too rapid. I should have had ATC keep vectoring me until I was on the ILS before calling the visual. I should have stayed higher throughout the visual 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.