Commission Regulation (EEC) No 492/87 of 18 February 1987 amending Regulation (EEC) No 548/86 laying down detailed rules for the application of accession compensatory amounts and Regulation (EEC) No 594/86 laying down detailed rules for the application of accession compensatory amounts applicable to trade in products covered by Regulations (EEC) No 3033/80 and (EEC) No 3035/80