Date: 202005
Local time of day: 0601-1200
Location: ZZZ.TRACON, US
Flight conditions: VMC
Light: Daylight
Aircraft: EMB ERJ 170/175 ER/LR
Operator: Air Carrier
Operating under: Part 121
Flight plan: VFR
Mission: Passenger
Flight phase: Initial Approach
Airspace: Class B ZZZ
ATC / advisory: TRACON ZZZ
Aircraft component: Hydraulic Main System
Component problem: Failed
Reporter organization: Air Carrier
Reporter function: First Officer; Pilot Flying
Reporter qualification: Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Second reporter function: Captain; Check Pilot; Pilot Not Flying
Anomaly: Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy
Detector: Person Flight Crew
When detected: In-flight
Result: Air Traffic Control Provided Assistance; Flight Crew Executed Go Around / Missed Approach; Flight Crew Landed in Emergency Condition; General Flight Cancelled / Delayed; General Maintenance Action
Contributing factors: Aircraft
Primary problem: Aircraft

Narrative: On approach past the final approach fix into ZZZ on the ILS XXL; we got a EICAS Message of HYD 2 LO PRESS. Captain called a go-around; I complied and I performed a go-around. Captain decided to keep Flaps 1 and speed of 180 KIAS during troubleshooting/QRH checklists; and put landing gear down to avoid a potential emergency gear extension procedure. The landing gear indicated 3 Green; with no problems. Captain ran the QRH to troubleshoot the Hyd LO Pressure. He noted that HYD 2 Quantity was flickering between 0% and 2%; so we assumed a complete loss of Hyd 2 system. We followed the QRH procedures; and [advised ATC]; requested fire rescue to be ready; briefed the flight attendants and passengers. Upon completion we successfully flew an ILS 27 approach to a full stop. We stopped on the runway using no Thrust Reversers; and minimal braking. Any braking pressure resulted in a mild pulsing/chattering. After coming to a full stop we talked to Tower; and had Fire Rescue perform a quick visual inspection of the aircraft for any potential hyd fluid/fires. Fire Rescue did not find any issues on their inspection. We decided to receive a tow to the gate due to degraded steering and braking. We started the APU; shut down both engines; and waited for a Tug to come. Captain briefed the flight attentdants and passengers on the situation. Upon arrival at the gate; we were assigned another aircraft to complete the remaining legs; with the entire crew deciding to continue to trip.


Second narrative: Aircraft was established on a ILS (visual conditions) RWY26L. First Officer was the flying pilot and was in the final configuration within the FAF. A blue status message appeared HYD 2 LO QTY followed by HYD 2 EDP FAIL. I looked on the HYD systems page on MFD and saw the Hyd quantity dropping rapidly. The CAS msg; HYD 2 LO PRESS appeared and I called for a Go Around. The crew executed a go around advised ATC and established on a ATC HDG and ALT advising ATC that the Go Around was done to look at a problem. Crew accomplished the HYD 2 LO PRESS QRH followed by LOSS OF HYDRAULIC SYSTEM 2 QRH Procedure. Crew Established and Communicated a plan that entailed to [advise] with ATC to have CFR in place and RWY priority in necessary. We communicated our intentions with flight attendants and advised passengers and Dispatch. We requested delay vectors to run the required QRH Decent Checklist. We chose to use RWY XY at ZZZ. Crew executed an ILS to the runway and accomplished QRH landing Checklist. First Officer remained the Flying Pilot. Captain monitored systems; radios; and QRH. Landing was well executed landing roll was slightly longer with partial system loss per malfunction. Associated Msgs appeared on the landing roll per malfunction. Captain took over controls and decided to stop on runway to have CFR look over outside of aircraft. All clear was given by CFR. I decided that taxi was too difficult without nosewheel steering and requested a tow to gate E14. Once parked; I made sure the passengers were OK and to answer any questions; no issues with them (3 passengers). Crew debriefed for clarification; any issues. and ways procedure/crew actions could be improved. Dispatch was debriefed and [Maintenance] received the [Maintenance] discrepancy that was entered into the aircraft [Maintenance] log.


Synopsis: ERJ flight crew reported a go around and an priority landing after loss of fluid in the number 2 hydraulic system.