Narrative:

We set up and briefed a visual approach with a stable 3.1 degree VNAV glidepath as reference after being cleared for a straight in visual approach to runway 21. We discussed and agreed to descend between two peaks as the approach proceeded. My excellent first officer (first officer) asked if we were sufficiently separated from the left hand peak; and I said yes. As we passed between the peaks on the stable descent; he expressed worries about our clearance on the left; and I said we have plenty of room; verified by my view from the left seat. Then the GPWS warned about terrain; and the first officer wanted me to turn right to clear. I felt this would destabilize the approach which was proceeding just fine in my opinion; and we continued and landed. We were navigating with visual reference to the hills; and the approach was totally stable.the first officer and I need to find out if we are constrained by GPWS terrain warnings when we are navigating and descending visually. I feel it was a perfectly normal; stable and reasonable visual approach; and my first officer; one of my favorite people to fly with; feels GPWS warnings about terrain require a responsive maneuver; even in good visual conditions. If I am wrong; I want to know. And I will cheerfully apologize to my first officer; who is an excellent pilot.

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Original NASA ASRS Text

Title: Gulfstream V flight crew reported receiving a GPWS 'Terrain; Pull Up' warning on a visual approach to SDL; prompting the FO to command a go-around; but the Captain decided to continue.

Narrative: We set up and briefed a visual approach with a stable 3.1 degree VNAV glidepath as reference after being cleared for a straight in visual approach to runway 21. We discussed and agreed to descend between two peaks as the approach proceeded. My excellent First Officer (FO) asked if we were sufficiently separated from the left hand peak; and I said yes. As we passed between the peaks on the stable descent; he expressed worries about our clearance on the left; and I said we have plenty of room; verified by my view from the left seat. Then the GPWS warned about terrain; and the FO wanted me to turn right to clear. I felt this would destabilize the approach which was proceeding just fine in my opinion; and we continued and landed. We were navigating with visual reference to the hills; and the approach was totally stable.The FO and I need to find out if we are constrained by GPWS terrain warnings when we are navigating and descending visually. I feel it was a perfectly normal; stable and reasonable visual approach; and my FO; one of my favorite people to fly with; feels GPWS warnings about terrain require a responsive maneuver; even in good visual conditions. If I am wrong; I want to know. And I will cheerfully apologize to my FO; who is an excellent pilot.

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.