Narrative:

Aircraft X departed tki for practice approachs at several airports in the dfw area. I was working dallas north position at the dfw TRACON (D10). Upon check-in; I asked the pilot what approach he wanted and issued him WX information for ads and vector of 260 degrees for the ILS runway 15. I thought I issued a climb to 3000 ft; but didn't. About 90 seconds later; the 'low altitude' alert went off due to aircraft X being at 2000 ft in a 2500 ft MVA. I issued a climb to 3000 ft at that time. This occurred during a position relief briefing; and I commented to the relieving controller that he should have been at 3000 ft. Again; I incorrectly assumed I had issued 3000 ft to the pilot which is evidenced by the fact I told the other controller he was supposed to be there.

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Original NASA ASRS Text

Title: D10 CTLR EXPERIENCED OPERROR AT 2000 FT WHEN FAILING TO ASSIGN CORRECT ALT RESULTING IN ACFT BEING BELOW MVA.

Narrative: ACFT X DEPARTED TKI FOR PRACTICE APCHS AT SEVERAL ARPTS IN THE DFW AREA. I WAS WORKING DALLAS N POS AT THE DFW TRACON (D10). UPON CHK-IN; I ASKED THE PLT WHAT APCH HE WANTED AND ISSUED HIM WX INFO FOR ADS AND VECTOR OF 260 DEGS FOR THE ILS RWY 15. I THOUGHT I ISSUED A CLB TO 3000 FT; BUT DIDN'T. ABOUT 90 SECONDS LATER; THE 'LOW ALT' ALERT WENT OFF DUE TO ACFT X BEING AT 2000 FT IN A 2500 FT MVA. I ISSUED A CLB TO 3000 FT AT THAT TIME. THIS OCCURRED DURING A POS RELIEF BRIEFING; AND I COMMENTED TO THE RELIEVING CTLR THAT HE SHOULD HAVE BEEN AT 3000 FT. AGAIN; I INCORRECTLY ASSUMED I HAD ISSUED 3000 FT TO THE PLT WHICH IS EVIDENCED BY THE FACT I TOLD THE OTHER CTLR HE WAS SUPPOSED TO BE THERE.

Data retrieved from NASA's ASRS site as of January 2009 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.