Cessna 340 pilot reported that the left brake malfunctioned during landing roll out.

Attributes
ACN	1552521
Time
Date	201806
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	Cessna 340/340A
Operating Under FAR Part	Part 91
Flight Phase	Taxi
Route In Use	None
Flight Plan	None
Component
Aircraft Component	Normal Brake System
Person 1
Function	Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument
Experience	Flight Crew Last 90 Days 5 Flight Crew Total 13620 Flight Crew Type 148
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy Ground Event / Encounter Loss Of Aircraft Control Ground Excursion Runway Ground Excursion Taxiway

Narrative:

I was sitting in the right seat of a C340 on flight returning to ZZZ. After normal visual approach and landing to runway 06; during rollout; the left brake system apparently malfunctioned. This resulted in difficulty for the pilot to stop the aircraft on runway. The pilot utilized a higher speed than normal 'end of runway' turnoff that resulted in the aircraft briefly overshooting taxiway H prior to returning to taxiway H. Aircraft was taxied to hangar utilizing differential power and the right brake system. No emergency was declared or assistance requested.

Original NASA ASRS Text

Title: Cessna 340 pilot reported that the left brake malfunctioned during landing roll out.

Narrative: I was sitting in the right seat of a C340 on flight returning to ZZZ. After normal visual approach and landing to Runway 06; during rollout; the left brake system apparently malfunctioned. This resulted in difficulty for the Pilot to stop the aircraft on runway. The pilot utilized a higher speed than normal 'end of runway' turnoff that resulted in the aircraft briefly overshooting taxiway H prior to returning to Taxiway H. Aircraft was taxied to hangar utilizing differential power and the right brake system. No emergency was declared or assistance requested.

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.