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B737 captain reported a terrain GPWS warning while flying the RNAV STAR kerso 2G to mdsd airport. Captain stated the crossing restriction at SD350 is 1;400 feet lower than the minimum sector altitude.
| Attributes | |
| ACN | 1640665 |
| Time | |
| Date | 201904 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | MDSD.Airport |
| State Reference | FO |
| Environment | |
| Flight Conditions | IMC |
| Aircraft 1 | |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach Descent |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 200 Flight Crew Total 7253 Flight Crew Type 4794 |
| Events | |
| Anomaly | Inflight Event / Encounter CFTT / CFIT |
Narrative:
We were descending from kerso to SD350. The arrival starts above 16;000 feet at kerso. The descent to SD350 is above 4;000 feet. However; to descend for the IFSD150; you must be at 4;000 feet at SD350. Looking at the chart; the minimum sector is 5;400 feet. We were IMC and avoiding thunderstorms and received a quick 'terrain' message. We stopped our descent; but [this] placed us high on the VNAV. We were above the VNAV path. When we broke out; it was unnerving to see how close to the terrain we were.
Original NASA ASRS Text
Title: B737 Captain reported a terrain GPWS warning while flying the RNAV STAR KERSO 2G to MDSD airport. Captain stated the crossing restriction at SD350 is 1;400 feet lower than the minimum sector altitude.
Narrative: We were descending from KERSO to SD350. The arrival starts above 16;000 feet at KERSO. The descent to SD350 is above 4;000 feet. However; to descend for the IFSD150; you must be at 4;000 feet at SD350. Looking at the chart; the minimum sector is 5;400 feet. We were IMC and avoiding thunderstorms and received a quick 'terrain' message. We stopped our descent; but [this] placed us high on the VNAV. We were above the VNAV path. When we broke out; it was unnerving to see how close to the terrain we were.
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.