Date: 201408
Local time of day: 1201-1800
Location: ZZZ.Airport, US
Flight conditions: VMC
Weather elements / visibility: 10
Aircraft: Eclipse 500
Operator: Personal
Operating under: Part 91
Flight plan: VFR
Mission: Personal
Flight phase: Landing
ATC / advisory: CTAF ZZZ
Aircraft component: Normal Brake System
Component problem: Malfunctioning
Reporter organization: Personal
Reporter function: Pilot Flying; Single Pilot
Reporter qualification: Flight Crew Air Transport Pilot (ATP); Flight Crew Flight Instructor
Human factors: Confusion
Anomaly: Aircraft Equipment Problem Critical; Ground Event / Encounter Object; Ground Excursion Runway
Detector: Person Flight Crew
When detected: Other Upon Landing
Result: Aircraft Aircraft Damaged; General Maintenance Action
Contributing factors: Aircraft
Primary problem: Aircraft

Narrative: Upon landing and applying brakes; aircraft pulled to the left. I released brakes and returned to the centerline. On application of brakes again; the plane pulled left and I realized I had an issue with the right brake. I slowly pumped the brakes; but no pressure was felt and softly applied brakes on and off to maintain directional control and slow down. I disabled the anti-lock-skid brakes; but still had no braking. I was unable to stop by the end of the runway and hit a light that punctured the wing skin and flap on the left wing. The airplane recently had an upgrade and the anti-lock-skid brakes were just installed last month as part of the Safety Enhancement Package (SEP) upgrade available to the Eclipse by Eclipse Aerospace. Not sure what I could have done to prevent this; Maintenance will be looking at the brakes to see if it is related to the upgrade. The approach and landing was standard with no issue until the application of the brakes.

Callback: Reporter stated the right brake had failed as he applied pedal pressure; resulting in a pull to the left of centerline since the left brake was functioning. No hydraulic leaks were noted. Landing speed was approximately 89 KTS. The aircraft was originally equipped with a Standard Braking System similar to a Cessna 172. Part of the Safety Enhancement Package (SEP) offered by Eclipse Aerospace for their EA500 aircraft included an anti-skid system installed at one of their factory locations. There is no hardware change to the original brake system or wheel brakes; only an anti-skid unit and software are added to the existing brake system.Reporter stated that after his landing event; the insurance company brought in an Aviation Safety Consultant who later determined the right brake did not appear to have been bled properly after the anti-skid system upgrade. Operational tests showed the right brake pedal would go all the way down without any braking action. Maintenance records indicated that after Eclipse had installed the anti-skid system and the aircraft was released for service; the right brake had been disassembled twice prior to his incident. Unclear as to the reason for the maintenance on the right brake.Reporter stated the Brake System is a self-contained hydraulic system. The landing gears are electrically operated. PW610 engines do not have reversers. Their EA500 aircraft is one of the early series to have the SEP retrofit upgrades. He has not heard of any other Operator or pilot experiencing a similar event with the add-on Anti-Skid System. The EA550 model enhancements are done at time of factory build of the aircraft.



Synopsis: Pilot reports an Eclipse-500 aircraft pulled to the left upon landing during application of the aircraft's brake pedals. Further application indicated a right brake failure. Directional control was maintained; but aircraft ran out of runway with minor damage to left wing and flap. Aircraft was recently upgraded with an anti-skid system.