What was found
JUST PRIOR TO LEVEL OFF AT 15,000 FT, WE STARTED SMELLING A STRONG "BURNING" ODOR. AT LEVEL OFF, WITH POWER REDUCED, THE ODOR DISSIPATED. IT RECURRED ON APPROACH WITH POWER INCREASES. REMOVED, CLEANED AND DRIED, INSTALLED WATER SEPARATOR CONDENSER BAG IAW MM 12-19-02. RAN BOTH ENGINES AND APU, NO ODOR NOTED.