PSS ltd. performs subsea inspections, maintenances, repairs of pipelines and cables. All operations are executed by divers and ROVs. Following list of works is provided by PSS personel:

Pipelines underwater inspection activities:

• GVI (General Visual Inspection);
• Close visual inspection of all pipeline stabilization facilities;
• Check for type of coating, locate any coating damage. 
• Сathodic protection testing;
• NDT (non-destructive testing):

–  UT (ultrasonic testing);

–  ACFM (Alternating Current Field Measurement);

• Bathymetry;
• Full detailed report in accordance with customer requirements.

Pipelines repair and maintenance activities:

• Pipeline coating repair;
• Installation of balance weights;
• Anodes installation;
• Installation of repair clamps;
• Installation of supports;
• Deinstallation of old pipelines using subsea oxygen cutting;
• Flanges installation;
• Marine growth cleaning;
• Debris removal;
• Subsea wet welding (2F-6G weld positions);
• Scour protection.