CRJ900 flight crew reported ib spoiler and ib spoileron messages resulting in emergency landing.

Attributes
ACN	1684125
Time
Date	201909
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZZ.Airport
State Reference	FO
Environment
Flight Conditions	Marginal
Aircraft 1
Make Model Name	Regional Jet 900 (CRJ900)
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Flight Plan	IFR
Component
Aircraft Component	Spoiler System
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Person 2
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Maintenance

Narrative:

We arrived at aircraft X with open write ups for the flight splrs and spoilerons. Mx arrived at the aircraft and preformed a [fix] which cleared the error and preformed a successful ops check. We departed to ZZZZ with indications through the flight normal including with use of spoilers. During approach; upon calling for gear down and selecting flaps to 30; we got the ib flight splrs and ib spoilerons msgs. We discontinued the approach; and requested vectors from ATC to work QRH. Msgs did not clear. We then switch to the longer runway; notified the company; and notified the fas (flight attendant) threat we were going to be making an emergency landing; the reason; and let them know we should not need to brace. I elected to call the fas opposed to using the 3 hi; log notification in order to reduce anxiety on their part. The fas worked great and effectively prepared the cabin. After completing setup for the other approach and an abbreviated brief (we had briefed ILS xx approach on arrival expecting to get it; but were changed to xyl) we proceeded in for the landing; we landed without event; notified ATC and taxied into the gate. The error seemed to be associated with a failing sensor as explained by mx.

Original NASA ASRS Text

Title: CRJ900 flight crew reported IB spoiler and IB spoileron messages resulting in emergency landing.

Narrative: We arrived at Aircraft X with open write ups for the FLT SPLRS and SPOILERONS. MX arrived at the aircraft and preformed a [fix] which cleared the error and preformed a successful ops check. We departed to ZZZZ with indications through the flight normal including with use of spoilers. During approach; upon calling for gear down and selecting flaps to 30; we got the IB FLT SPLRS and IB SPOILERONS msgs. We discontinued the approach; and requested vectors from ATC to work QRH. MSGs did not clear. We then switch to the longer runway; notified the company; and notified the FAs (Flight Attendant) threat we were going to be making an emergency landing; the reason; and let them know we should not need to brace. I elected to call the FAs opposed to using the 3 hi; log notification in order to reduce anxiety on their part. The FAs worked great and effectively prepared the cabin. After completing setup for the other approach and an abbreviated brief (we had briefed ILS XX approach on arrival expecting to get it; but were changed to XYL) we proceeded in for the landing; we landed without event; notified ATC and taxied into the gate. The error seemed to be associated with a failing sensor as explained by MX.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.