Before final instalation of the E-617 (RH) Elevator Fiberglass tip, the E-714 (RH) Elevator Lead Counterweight needed to be measured and trimmed according to minimum measurement requirements in DWG 5 in order to compensate for the overweight and overbalance of the counterweight horn . A pair of relief holes where drilled on top and bottom to avoid sharp corners after the cut. Regular hacksaw and a gallon of WD-40 lubricant were used to make the cuts. Primed the newly exposed area of the lead counterweight after the WD-40 was completely wiped off.