Narrative:

I was receiving a skill check from my supervisor at the time of the incident. Weather was in the area and for the first part of the session traffic had been light and routine. After half way through the first part of the training session [military aircrafts] were recovering from their practice area. There were 2 flights of 2 and 2 singles. They didn't come in at once but they were about 20 seconds apart and they all came in VFR. Because there was light to moderate precipitation around the airport the flights changed their plan and requested local IFR clearances and flight split ups so they could do the TACAN approach to runway 28L. While the [military aircrafts] were inbound I had a DH8 on an arrival as well as a B737 and I had to departures plus I had to sequence to the north radar with his arrivals. The incident occurred when I had [military aircrafts] on a vector to intercept final. At the time I turned [the military aircraft flight] to intercept the minimum vectoring altitude (MVA) was seven thousand. However [one of the military planes] were 4 or 5 miles in trail and the turn I gave them wasn't enough to intercept the final approach course and miss the higher MVA of eight thousand. [The military aircraft] was briefly in the higher MVA and given a heading to exit it immediately. Thankfully the [military aircraft] was able to intercept final and landed without incident. This was my first time working the [military planes] in inclement weather and doing flight split ups. I am presently in training. I need to keep training in order to make adjustments and improve. The [military aircraft] had been deployed overseas for months and in that time I had been unable to train with them. They're back now and are always providing new challenges. One suggestion to alleviate this problem would be to have the military approach control perform the flight split ups prior to entering my airspace when we are landing west. There isn't a lot of space to vector 6 aircraft with rapidly rising terrain.

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Original NASA ASRS Text

Title: BOI TRACON controllers reported radar vectors were issued to an aircraft into an area below the MVA.

Narrative: I was receiving a skill check from my supervisor at the time of the incident. Weather was in the area and for the first part of the session traffic had been light and routine. After half way through the first part of the training session [military aircrafts] were recovering from their practice area. There were 2 flights of 2 and 2 singles. They didn't come in at once but they were about 20 seconds apart and they all came in VFR. Because there was light to moderate precipitation around the airport the flights changed their plan and requested local IFR clearances and flight split ups so they could do the TACAN Approach to Runway 28L. While the [military aircrafts] were inbound I had a DH8 on an arrival as well as a B737 and I had to departures plus I had to sequence to the North Radar with his arrivals. The incident occurred when I had [military aircrafts] on a vector to intercept final. At the time I turned [the military aircraft flight] to intercept the Minimum Vectoring Altitude (MVA) was seven thousand. However [one of the military planes] were 4 or 5 miles in trail and the turn I gave them wasn't enough to intercept the final approach course and miss the higher MVA of eight thousand. [The military aircraft] was briefly in the higher MVA and given a heading to exit it immediately. Thankfully the [military aircraft] was able to intercept final and landed without incident. This was my first time working the [military planes] in inclement weather and doing flight split ups. I am presently in training. I need to keep training in order to make adjustments and improve. The [military aircraft] had been deployed overseas for months and in that time I had been unable to train with them. They're back now and are always providing new challenges. One suggestion to alleviate this problem would be to have the military approach control perform the flight split ups prior to entering my airspace when we are landing west. There isn't a lot of space to vector 6 aircraft with rapidly rising terrain.

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.