C-525 captain reported a runway excursion during landing rollout due to right brake failure.

Attributes
ACN	1743886
Time
Date	202005
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Citationjet (C525/C526) - CJ I / II / III / IV
Operating Under FAR Part	Part 91
Flight Phase	Landing
Route In Use	Visual Approach
Flight Plan	IFR
Component
Aircraft Component	Wheels/Tires/Brakes
Person 1
Function	Captain Single Pilot
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Flight Instructor Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 350 Flight Crew Total 8900 Flight Crew Type 300
Events
Anomaly	Aircraft Equipment Problem Less Severe Ground Event / Encounter Loss Of Aircraft Control Ground Excursion Runway

Narrative:

I was making a visual approach into runway xx at ZZZ; at roll out and approximately 20 kts. Or less I applied both brakes and noticed then that my right brake had failed and the nose swerved to the left. I got off of both brakes and applied emergency brake; and aircraft X departed the runway to the left coming to rest about 6-10 feet off of runway edge. No one was injured and no damage was done to aircraft X.

Original NASA ASRS Text

Title: C-525 Captain reported a runway excursion during landing rollout due to right brake failure.

Narrative: I was making a visual approach into Runway XX at ZZZ; at roll out and approximately 20 kts. or less I applied both brakes and noticed then that my right brake had failed and the nose swerved to the left. I got off of both brakes and applied emergency brake; and Aircraft X departed the runway to the left coming to rest about 6-10 feet off of runway edge. No one was injured and no damage was done to Aircraft X.

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.