Narrative:

Aircraft X was on the RNAV GPS Y approach to runway 28L. He was at 160 knots and asked on check-in if he could slow down. I told him that we need best practical forward speed due to an in-trail crj; but agreed that he could slow a bit as spacing was fine. I gave pilot the base which was at minimum from last PIREP. Minimum for this approach is 1;080 feet. I saw aircraft X break out at about 1;000 feet. I watched him inbound and checked for wheels but saw that they were not down. I told pilot to check wheels down. I noticed that he appeared high and was approaching as if still on the approach even though he was out of the clouds. I asked if he was going around. Pilot said no; he is on the approach. I immediately told him that he needs to turn right heading 330; and climb and maintain 3;000 for terrain south of the airport. Pilot complied; and I handed him back to norcal approach for a second approach attempt. I believe that the pilot was checking his wheels when I told him and he did not prepare to land satisfactorily. I was surprised that he did not appear to realize that he was out of the clouds for some time and that he was potentially heading towards terrain if I had not turned him. His speed requested may be an issue; but he had plenty of time to land after breaking out of the cloud layer.

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Original NASA ASRS Text

Title: MRY Controller reported needing to issue a turn and climb instructions to a C182 to avoid terrain.

Narrative: Aircraft X was on the RNAV GPS Y Approach to Runway 28L. He was at 160 knots and asked on check-in if he could slow down. I told him that we need best practical forward speed due to an in-trail CRJ; but agreed that he could slow a bit as spacing was fine. I gave pilot the base which was at minimum from last PIREP. Minimum for this approach is 1;080 feet. I saw Aircraft X break out at about 1;000 feet. I watched him inbound and checked for wheels but saw that they were not down. I told pilot to check wheels down. I noticed that he appeared high and was approaching as if still on the approach even though he was out of the clouds. I asked if he was going around. Pilot said no; he is on the approach. I immediately told him that he needs to turn right heading 330; and climb and maintain 3;000 for terrain south of the airport. Pilot complied; and I handed him back to NORCAL Approach for a second approach attempt. I believe that the pilot was checking his wheels when I told him and he did not prepare to land satisfactorily. I was surprised that he did not appear to realize that he was out of the clouds for some time and that he was potentially heading towards terrain if I had not turned him. His speed requested may be an issue; but he had plenty of time to land after breaking out of the cloud layer.

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.