Narrative:

I was working fewer than three aircraft. Aircraft X flight was the last of three flights of fighters recovered. The previous two flights descended very slowly for their approach. Aircraft X was at 12;000 ft over a 10;400 ft minimum vectoring altitude. I descended the aircraft to 5;000 anticipating a slow descent; like the others. Aircraft X descended quicker and into the 10;400 ft minimum vectoring altitude. In hindsight; I should not have allowed myself to think all fighters will do all things the same way; and I know better. Attention to detail will curtail this; as will better scanning.

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Original NASA ASRS Text

Title: FAT Radar Controller reported that due to performance of previous arrivals; he issued an early descent to a flight of fighters. The aircraft descended faster than anticipated; resulting in a minimum vectoring altitude violation.

Narrative: I was working fewer than three aircraft. Aircraft X flight was the last of three flights of fighters recovered. The previous two flights descended very slowly for their approach. Aircraft X was at 12;000 FT over a 10;400 FT minimum vectoring altitude. I descended the aircraft to 5;000 anticipating a slow descent; like the others. Aircraft X descended quicker and into the 10;400 FT minimum vectoring altitude. In hindsight; I should not have allowed myself to think all fighters will do all things the same way; and I know better. Attention to detail will curtail this; as will better scanning.

Data retrieved from NASA's ASRS site as of April 2012 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.