Date: 202201
Local time of day: 1201-1800
Location: ZZZ.Airport, US
Flight conditions: VMC
Weather elements / visibility: Rain
Aircraft: A319
Operator: Air Carrier
Operating under: Part 121
Flight plan: IFR
Mission: Passenger
Flight phase: Taxi
ATC / advisory: Ramp ZZZ
Aircraft component: Parking Brake
Component problem: Malfunctioning
Reporter organization: Air Carrier
Reporter function: First Officer; Pilot Not Flying
Reporter qualification: Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument
Human factors: Workload; Situational Awareness; Confusion; Communication Breakdown; Human-Machine Interface
Second reporter function: Pilot Flying; Captain
Anomaly: Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy; Ground Event / Encounter Loss Of Aircraft Control; Ground Event / Encounter Weather / Turbulence
Result: Flight Crew Took Evasive Action; General Maintenance Action
Contributing factors: Aircraft; Human Factors; Weather
Primary problem: Aircraft

Narrative: Delayed reporting after Captain submitted [report]. Realized I should submit [a report] as well. Normal arrival into ZZZ. Snowstorm the previous night and into the morning. Ground taxi behind Aircraft Y with Captain riding the brakes. Taxiways with some snow and ice. Captain called for #2 engine shutdown. After arriving near the gate and lined up for a straight-in taxi; Captain set the parking brake; waiting for Ground crew to guide us in for the remaining 100 yards to the gate. Once directed by Ground crew; Captain released the parking brake and began to add power. No movement was noted and the Captain added more power; thinking that there was snow or ice preventing us from moving. I looked to checked that the parking brake was released and no message was displayed. I then looked at the pressure gauge and saw the needles pegged at 3000 psi; but was unable to recognize the discrepancy before the plane broke free with the asymmetric thrust and skidded in a 150-degree right hand turn. Once stopped; we confirmed that the needles were at 3000 psi with the brakes released. The Captain cycled the parking brake and the pressure returned to normal. With Ramp coordination; we continued our right-hand turn and returned to the gate normally. The brake issue was not reported via maintenance report since indications had return to normal. Follow-on flight crew was at the gate and we gave a verbal report of what happened with the brakes.


Second narrative: We landed ZZZ XXR and taxied to the gate. We were waiting for the Ramp guys to marshal us in. We were pointed south with the right engine shut down; parking brake set. When they eventually showed up; I released the brake and added a bit of thrust to taxi in but the aircraft did not move. I assumed we had some ice and frozen clutter possibly stuck to the brake so I kept increasing thrust to get the aircraft to move. I am not sure how much thrust we had when the aircraft suddenly pivoted about 150 degrees to the right. I immediately retarded the throttle and selected full brakes. Ramp inquired why we made the turn. After we were cleared to continue the turn to taxi to the gate; we noticed that the park brake appeared to be stuck. Brakes released and indicated 3;000 psi. I cycled the brake a few times and when it showed normal indication; we continued in to the gate for an uneventful parking. I did not do a maintenance write-up as I believed this was the result of frozen clutter. I did inform the new Captain of what had happened. The pivot was sudden but it was not violent. We literally slid across an icy ramp. Very smooth.


Synopsis: A319 flight crew reported a loss of aircraft control during taxi in to the gate due to the parking brake getting stuck and not releasing.