Phenom 100 flight instructor reported that upon runway roll out; the left brake locked up causing th...

Attributes
ACN	1465144
Time
Date	201707
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Embraer Phenom 100
Operating Under FAR Part	Part 91
Flight Phase	Landing
Route In Use	Visual Approach
Flight Plan	None
Component
Aircraft Component	Wheels/Tires/Brakes
Person 1
Function	Instructor Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 120 Flight Crew Total 9300 Flight Crew Type 60
Events
Anomaly	Aircraft Equipment Problem Less Severe Ground Event / Encounter Object Ground Excursion Runway

Narrative:

While conducting training operations; as the instructor; in an emb-500 type aircraft my student had just landed the aircraft and began the rollout on centerline. Upon applying the brakes the said aircraft immediately pulled hard to the left. All attempts to prevent the aircraft from departing the runway were unsuccessful. The aircraft departed the left side of the runway and the left tire struck a runway marker thus breaking it. The aircraft was subsequently brought under control by myself and taxied back onto the runway and then taxied via the remaining runway and taxiways to the ramp for inspection. Inspection of the aircraft revealed a small mark on the left tire but no other damage to the aircraft was visible. Embraer was called to do a full inspection of the aircraft as well as a system download to determine the cause. It was determined by embraer that a failure of the brake control module was the cause of the rapid and abrupt pulling of the aircraft to the left and said system was repaired by embraer through replacement parts. The final inspection of the aircraft by embraer employees revealed no other damage to the aircraft or its systems. No passengers or crew were injured during this event.

Original NASA ASRS Text

Title: Phenom 100 Flight Instructor reported that upon runway roll out; the left brake locked up causing the jet to swerve and leave the hard surface of the runway.

Narrative: While conducting training operations; as the instructor; in an EMB-500 type aircraft my student had just landed the aircraft and began the rollout on centerline. Upon applying the brakes the said aircraft immediately pulled hard to the left. All attempts to prevent the aircraft from departing the runway were unsuccessful. The aircraft departed the left side of the runway and the left tire struck a runway marker thus breaking it. The aircraft was subsequently brought under control by myself and taxied back onto the runway and then taxied via the remaining runway and taxiways to the ramp for inspection. Inspection of the aircraft revealed a small mark on the left tire but no other damage to the aircraft was visible. Embraer was called to do a full inspection of the aircraft as well as a system download to determine the cause. It was determined by Embraer that a failure of the Brake Control Module was the cause of the rapid and abrupt pulling of the aircraft to the left and said system was repaired by Embraer through replacement parts. The final inspection of the aircraft by Embraer employees revealed no other damage to the aircraft or its systems. No passengers or crew were injured during this event.

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.

Phenom 100 flight instructor reported that upon runway roll out; the left brake locked up causing the jet to swerve and leave the hard surface of the runway.