EMB ERJ 140 ER/LR
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Flight Crew Total 2887
Communication Breakdown; Confusion; Workload
Deviation - Speed All Types; Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance; Inflight Event / Encounter Unstabilized Approach
Flight Crew Executed Go Around / Missed Approach
Human Factors
Center cleared us to fly direct to XXXXX; a fix on the ILS into ZZZ. He also advised us to descend at our discretion from 17;000 ft. to 4;000 ft.; which we did. He then later cleared us for the ILS approach into ZZZ; which we acknowledged. A few minutes later; he cleared us for the approach again; which we acknowledged once more. At this point; we were passing abeam the airport from the west; and the FMS sequenced to RWY XX and the aircraft began to turn to the right. I immediately selected HDG mode to stop the turn and brought the aircraft back on course. I tried resequencing the FMS; however; I was unable to make it fly the course we desired and did not want to be further distracted attempting to. Aware that we had a tailwind and were covering ground quite fast; I realized that we were about to go through the localizer course; having not been instructed to execute a procedure turn; nor considered one myself; I turned off the autopilot and turned the aircraft inbound while descending. I did this at idle thrust; in attempt to capture the glide slope and be stabilized by 1;000 ft. AGL. Once on the glide slope; I reduced my decent angle significantly and added power; however the aircraft got slow and the stick shaker was actuated momentarily; at which point we immediately initiated a go around. ATC had switched controllers; and the new controller gave us vectors to re-attempt the ILS; which resulted in a landing.FMS sequencing to runway and initiating an uncommanded turn; associated increase in work load + distraction attempting to rectify this. ATC clearing us direct XXXXX; then clearing us for the approach with no indication of how they would like for us to do that. Neither briefing nor expecting to execute a procedure turn. ATC clearing us again for the same approach; resulting in a very brief moment of confusion for both of us. Not asking for vectors. Attempting to salvage the approach despite being high. Not applying sufficient power to maintain airspeed once on glide slope. Not abandoning the approach sooner and executing the go around earlier.ATC to be more specific if/when expecting us to execute a full procedure ILS. Flight crew do not expect vectors. Flight crew should ask for clarification if uncertain of ATC instructions or stipulations. Do not attempt to salvage the approach; ask for vectors if needed or execute an earlier go around. Proper airspeed management; particularly when recovering from an idle descent.
[Report narrative contained no additional information.]
ERJ flight crew reported a speed deviation on approach that resulted in a stick shaker followed by a go around.