Narrative:

I was taking over the position first thing upon coming in that morning. Everything was combined at the pomona sector; which means pomona was working 4 sectors out of 6. (Springs/desert was split) the controller had a departure off of ont; aircraft X; that was climbing via the SID; versus an IFR aircraft (aircraft Y); from the north inbound to hhr; on a vector to intercept the localizer at 60'. They told the departure to 'climb unrestricted to 140';' which was a risky move in my opinion; because experience tells me that aircraft X [type] jets don't climb out the best; and to further complicate things; we don't own above 9000 ft in that location so unrestricted would require a point out to the feeder sector above. At the same time; there was aircraft Z on the downwind for ont that he had descended to 3700 ft; which again; goes against what I normally do; because of the MVA southeast of ont. Before giving me the position; he put aircraft Z on a base leg of 170 degrees for the ILS. Immediately upon taking the position; I told aircraft X to expedite climb and turned aircraft Y to a heading of 180; because I was concerned the separation would not work between those 2 aircraft. Then I called the traffic to aircraft X; who said; 'in sight;' told him to 'maintain visual separation;' and turned aircraft Y back to the west. In all this; aircraft Z proceeded to go through the localizer at 3700 ft; heading towards the 4300 ft MVA. I turned him back north; but called him [by the wrong callsign]. He didn't answer; so I restated the turn northbound; this time climbing him to 4300 ft because I was afraid he would spill into the 4300 ft MVA area. I don't know if he did in fact clip the 4300 ft area; before he climbed immediately and headed north. I should have known better than to take a position with separation I wasn't comfortable with. I should have let the controller work out his own situation; then taken over.

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Original NASA ASRS Text

Title: SCT TRACON Controller reported an aircraft may have entered a higher MVA after missing their clearance due to the reporter using the wrong call sign.

Narrative: I was taking over the position first thing upon coming in that morning. Everything was combined at the Pomona sector; which means Pomona was working 4 sectors out of 6. (Springs/Desert was split) The controller had a departure off of ONT; Aircraft X; that was climbing via the SID; versus an IFR Aircraft (Aircraft Y); from the North inbound to HHR; on a vector to intercept the localizer at 60'. They told the departure to 'climb unrestricted to 140';' which was a risky move in my opinion; because experience tells me that Aircraft X [type] jets don't climb out the best; and to further complicate things; we don't own above 9000 ft in that location so unrestricted would require a point out to the Feeder sector above. At the same time; there was Aircraft Z on the downwind for ONT that he had descended to 3700 ft; which again; goes against what I normally do; because of the MVA southeast of ONT. Before giving me the position; he put Aircraft Z on a base leg of 170 degrees for the ILS. Immediately upon taking the position; I told Aircraft X to expedite climb and turned Aircraft Y to a heading of 180; because I was concerned the separation would not work between those 2 aircraft. Then I called the traffic to Aircraft X; who said; 'in sight;' told him to 'maintain visual separation;' and turned Aircraft Y back to the west. In all this; Aircraft Z proceeded to go through the localizer at 3700 ft; heading towards the 4300 ft MVA. I turned him back north; but called him [by the wrong callsign]. He didn't answer; so I restated the turn northbound; this time climbing him to 4300 ft because I was afraid he would spill into the 4300 ft MVA area. I don't know if he did in fact clip the 4300 ft area; before he climbed immediately and headed north. I should have known better than to take a position with separation I wasn't comfortable with. I should have let the controller work out his own situation; then taken over.

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.