Date: 202011
Local time of day: 0601-1200
Location: ZZZ.Airport, US
Flight conditions: VMC
Light: Daylight
Aircraft: Regional Jet 700 ER/LR (CRJ700)
Operator: Air Carrier
Operating under: Part 121
Flight plan: IFR
Mission: Passenger
Flight phase: Initial Approach
ATC / advisory: TRACON ZZZ
Aircraft component: Flap Control (Trailing & Leading Edge)
Component problem: Malfunctioning
Reporter organization: Air Carrier
Reporter function: Captain; Pilot Not Flying
Reporter qualification: Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Anomaly: Aircraft Equipment Problem Critical; Inflight Event / Encounter Loss Of Aircraft Control
Detector: Person Flight Crew
When detected: In-flight
Result: Flight Crew Regained Aircraft Control; Flight Crew Landed in Emergency Condition
Contributing factors: Aircraft
Primary problem: Aircraft

Narrative: While descending on the ZZZZZ3 RNAV Arrival into ZZZ; the First Officer deployed the flight spoilers in order to slow the aircraft between the ZZZZZ intersection and the ZZZZZ1 intersection so as to meet the 10;000 foot/250 knot airspeed restriction at ZZZZZ1. When she deployed the flight spoilers; the aircraft began an uncommanded roll to the right; approximately 10 degrees at maximum flight spoiler deployment. This behavior is not normal and as the First Officer retracted the spoilers I activated the flight control synoptic page. All spoilers were retracted in agreement with the flight spoiler handle. I then asked the First Officer to deploy the spoilers slowly so I could observe the synoptic page indications. The spoilers deployed normally according to the data provided but the aircraft still rolled to the right. The First Officer retracted the spoilers and we continued onward to ZZZ. On approach to Runway XXL and after being cleared for the visual approach; the First Officer requested 'flaps 8' to configure the aircraft for landing and as I selected flaps 8; I received a 'FLAPS FAIL' amber caution message along with a 'Yaw Damper 2 Inop' white status message. I activated the flight control synoptic page and saw that both slats were deployed at 20 degrees with a green indication; the left flap was deployed at 1 with an amber indication; and the right flap was in an unknown position as indicated by '--' with an amber indication. I notified ATC and Dispatch as well as the flight attendants as to the nature of the emergency; an approximate landing time of 10 minutes; no signal to brace will be given and I asked if there were any abnormal events or conditions in the cabin. The Lead Flight Attendant said no abnormalities were present and I transferred the radio control to the First Officer while I executed the instructions set forth in the Quick Reference Handbook; page 9-8; 'FLAPS FAIL msg' (amber caution). After determining the landing speed and landing distance required; I decided that a landing could be performed on Runway XXL; 12;000 ft. in length. I advised air traffic control that we were ready to land and I then took the flight controls from the First Officer and landed the aircraft. Upon arrival at the gate; I contacted the Dispatcher; Flight Coordinator; Maintenance Control; and shortly thereafter; the Chief Pilot's Office. Flaps failure in the approach and landing phase. Uncommanded roll due to spoiler deployment and yaw damper 2 inoperative were possible contributing causes; but unable to determine with any degree of certainty as to whether or not any relation existed between them.




Synopsis: Air carrier flight crew flying CRJ-700 aircraft reported flap malfunction on approach.