Incident Overview
On June 15, 2016, at Warsaw Chopin Airport (EPWA), a LOT Polish Airlines Embraer ERJ-175 experienced an incident after taxiing to its parking stand. Approximately three minutes after the aircraft stopped and was secured, a ground coordinator noticed smoke emanating from the right main landing gear. The ground handling was halted, and the captain was notified, who then summoned the airport fire service.
Crew Actions and Inspection
The flight crew did not observe any indications of brake overheating or other anomalies. During inspection of the right main landing gear, an intensive leak of brake fluid was discovered. The leak was caused by a failure of one of the brake system lines. The escaping brake fluid, upon contact with the hot brake discs, was vaporizing, which had been initially perceived as smoke.
Containment and Cleanup
The spilled brake fluid on the parking apron was neutralized. No further operational issues were reported.
Cause
The direct cause of the incident was determined to be a failure of a brake line on the right main landing gear.
Preventive Measures
The operator, LOT Polish Airlines, recorded the event in its Safety Management System (SMS) database and classified it according to the company's criteria. The incident will be included in Safety Performance Indicators (SPI) monitored per the guidelines in the Safety Management Manual.
Safety Recommendations
The investigation commission issued no safety recommendations.