defect rectification on various engineering and electrical defects onboard icgs c-156 => limited-1 e-36: abnormal noise observed from fresh water hydrophore pump no 1 ( make: m / s spx flow technology, model: kgefc 16-3 ) and the pump not taking suction from fresh water tank. suspect mechanical seal and bearing worn out. renewal of mechanical seal and bearing to be carried out and pump to be proved for satisfactory performance. 2 l-50 : reversible engine room ventilation fan-2 ( capacity 5.7 kw, 415 v, 3 phase ) not working and showing low insulation. suspect fan motor worn out and impeller imbalance. defect to be rectified and ventilation fan to be proved for satisfactory operation. scope of job includes removal and fitment of fan from engine room ventilation trunking. 3 l-51: ship’s deep freezer ( make – radial solutions, capacity – 350 ltrs ) not working view defective compressor and thermostat. defect to be rectified and deep freezer to be proved for satisfactory operation.