Regional Jet 900 (CRJ900)
Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Less Severe
Flight Crew Landed in Emergency Condition
Aircraft
Upon descent; the First Officer (pilot flying) extended the flight spoilers. Moments after extending the spoilers; the flight crew recognized the aircraft entered an uncommanded roll. This was followed by two caution messages: OUTBOARD (OB) SPOILERONS; OB FLT SPOILERS.Captain handled QRH and determined to extend landing distance by 25% and land on longest runway. [Priority handling was requested]; flight attendants briefed; passengers informed; dispatcher notified; and flight crew advised ATC to have emergency vehicles standing by. After a beautiful landing performed by the First Officer; the flight crew terminated the [priority with ATC] and continued to the assigned gate. Flight arrived at the planned gate without any injuries or aircraft damage. Maintenance was notified and they directed the Captain to perform a circuit breaker reset to fix a PCU jam. Once completed aircraft was returned back to service.Cause- OB SPOILERONS; OB FLT SPOILERS caution messages in flight.Suggestion- Properly maintain the spoiler PCUs so they don't jam.
CRJ-900 Captain reported an outboard spoilers malfunction that caused an uncommanded roll; QRH procedures were followed and aircraft made a successful landing.