The Flightline Composite Repair Systems include the same basic features, operation and capabilities as the HCS9000 and HCS9200 systems, but are further designed to meet the requirements of Class I, Division II, hazardous environment operation per the U.S. National Electric Code (NEC), as promulgated by the National Fire Protection Association (NFPA). The primary application is composite and metal bond repairs on fueled aircraft and in other Class I, Division II environments.

Class I, Division 1:
• In which ignitable concentrations of flammable gases or vapors may exist under normal operating conditions; or
• In which ignitable concentrations of such gases or vapors may exist frequently because of repair or maintenance operations or because of leakage; or
• In which breakdown or faulty operation of equipment or processes might release ignitable concentrations of flammable gases or vapors, and might also cause simultaneous failure of electric equipment.

Class I, Division 2:
• In which volatile flammable liquids or flammable gases are handled, processed, or used, but in which the hazardous liquids, vapors, or gases will normally be confined within closed containers or closed systems from which they can escape only in the event of accidental rupture or breakdown of such containers or systems, or as a result of abnormal operation of equipment; or
• In which ignitable concentrations of gases or vapors are normally prevented by positive mechanical ventilation, and which might become hazardous through failure or abnormal operations of the ventilating equipment; or
• That is adjacent to a Class I, Division 1 location, and to which ignitable concentrations of gases or vapors might occasionally be communicated unless such communication is prevented by adequate positive-pressure ventilation from a source of clean air, and effective safeguards against ventilation failure are provided.

Heat blankets* for the flightline systems include a supervisory grid for over temperature safety and a ground plane for sensing faulty circuits.
* System requires special heat blankets for vapor volatile environments. Heat blankets must be ordered separately. Please ask your sales engineer for more information regarding Supervisory Heat Blankets.