Widebody; Low Wing; 2 Turbojet Eng
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 16
Situational Awareness; Distraction; Communication Breakdown; Time Pressure; Workload
ATC Issue All Types; Deviation - Altitude Undershoot; Deviation / Discrepancy - Procedural Clearance; Inflight Event / Encounter CFTT / CFIT
Air Traffic Control Issued Advisory / Alert; Air Traffic Control Issued New Clearance; Flight Crew Executed Go Around / Missed Approach
Airspace Structure; Environment - Non Weather Related; Human Factors; Procedure
Aircraft X was executing practice IFR approaches. The first approach was ILS 32R [and] the second was GLS 14L. I issued climbout instructions: 'On departure; you are cleared to ZZZ via radar vectors; turn right heading 360; climb and maintain four thousand.' The pilot read this back correctly. Once airborne again; the pilot checked in with the correct heading and his current altitude; both of which were correct. I was working CIC as well so I was paying more attention to Tower than I should have; and I missed the part where he said he was climbing to three thousand; so I vectored him for another approach as normal. I didn't catch his altitude until after I had issued the base turn; when the aircraft was already inside the 4;000 ft. MVA.Pay attention to the aircraft I am working during initial call up; then go back and catch back up with the traffic on other positions if necessary. Also check for climb when aircraft are approaching higher MVAs rather than trusting [that] the pilot will do as instructed.
Tower Local Controller also working as CIC reported being distracted by CIC duties and not noticing an aircraft report a climb to the wrong altitude that resulted in the aircraft flying below the Minimum Vectoring Altitude.