Narrative:

Established on localizer 27 between vydda and okain. Localizer capture and VNAV path were established. Speed 170 kts as assigned by ATC. Flaps 20 gear up. Descending to out of 3800 MSL and we received a GPWS warning 'terrain terrain - pull up pull up pull up' warning. Initiated terrain escape maneuver and as soon as we climbed 200 feet the warning ceased. We continued to climb to 4000 feet and advised ATC. After initiating terrain escape maneuver; we were unable to re-establish VNAV path and executed a go-around and diverted.

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Original NASA ASRS Text

Title: B757 flight crew reported executing a go-around and diverting to an alternate after receiving a GPWS terrain alert on approach to SAN.

Narrative: Established on LOC 27 between VYDDA and OKAIN. LOC Capture and VNAV Path were established. Speed 170 Kts as assigned by ATC. Flaps 20 Gear Up. Descending to out of 3800 MSL and we received a GPWS warning 'Terrain Terrain - Pull Up Pull Up Pull Up' warning. Initiated Terrain Escape maneuver and as soon as we climbed 200 feet the warning ceased. We continued to climb to 4000 feet and advised ATC. After initiating Terrain Escape maneuver; we were unable to re-establish VNAV Path and executed a Go-Around and diverted.

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.