CRJ-700 flight crew reported landing safely at an alternate airport after experiencing loss of hydraulic system 3 shortly after takeoff.
Synopsis
CRJ-700 flight crew reported landing safely at an alternate airport after experiencing loss of hydraulic system 3 shortly after takeoff.
Narrative
After taking off from ZZZ I selected gear up on the landing gear lever. Almost immediately we got a GEAR DISAGREE RED MSG. I acknowledged the warning and reminded the First Officer to continue the departure profile. Several seconds later a HYD 3 LO PRESS message. Shortly after that we received a IB GND SPOILER message as well. We told Departure we needed to level and get vectors for a malfunction and to run a checklist. I designated the First Officer to continue being the PF (Pilot Flying). After discussing the problem we both agreed that the most appropriate checklist would be for the hydraulic pressure problem. This was verified on the hydraulic synoptic with 0 pressure and quantity in system 3 and only systems powered by that system having any messages.As I completed the QRH it became evident this would be a diversion. We told Dispatch; and briefed the flight attendants and passengers. I chose to go to ZZZ1. Queried ATC for NOTAMs and longest runway.After briefing the diversion and making sure we had not missed anything I then assumed PF duties for the flaps 20 landing. We landed without further incident.The weather was gusty. However ZZZ1 was the best option considering runway length and orientation with the wind. Wind was 220 @ 18 [kts.] gust 28 [kts.] on final. I decided to have the passengers and flight attendants brace due to the reduced directional control; potentially reduced braking and reducing ground lift dumping. I initiated the brace at approx 500ft. We slowed and decelerated relatively normally and were able to clear the runway with fire trucks surrounding us. I then asked on the PA for everyone to remain seated. Fire and rescue chocked the wheels and reported the left wheel well was covered in hydraulic fluid residue but no fire danger.After letting the passengers and flight attendants know we then were towed to gate by operations.A hydraulic fitting for the left main gear down lock actuator came apart. When the line pressurized upon selecting gear up; the fitting failed and all of our fluid in system 3 was promptly pumped overboard.
Second reporter narrative
During takeoff when I called for gear up we received a gear disagree message (gear did not retract) then followed by hydraulic 3 low pressure. Captain decided to allow me to fly while he reviewed the messages. We both agreed to run the hydraulic 3 low pressure [QRH] which caused the gear disagree message. The Captain notified ATC that we needed time to run the QRH and after the completion of the checklist elected to divert. He then alerted the passengers and flight attendants about the situation. During this I was taking instructions from ATC for vectors and flying the aircraft. We told ATC that we wanted to divert [to] ZZZ1 for the longest runway. Before the approach we switched controls and the Captain was flying. Winds were gusting 28 [kts.] and the fact that we did not have nose wheel steering we notified the flight attendants to brace around 500 feet. Landing proceeded as normal and we were able to taxi off the runway. The Captain announced to the passengers to remain seated. Fire/rescue looked over the aircraft and noticed hydraulic fluid dripping and covering the left main landing gear. We were able to get towed to the gate and passengers deplaned safely.
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Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.