What was found
FIRST OFFICERS WINDOW VERY VERY HARD TO CLOSE. GROUNDED - YES. CHECKED WINDOW TRACK, ROLLERS AND GENERAL CONDITION OF WINDOW, IT APPEARS GOOD. CLOSED WINDOW BUT REQUIRED TREMENDOUS FORCE. REMOVED THE R/H #2 OPENABLE WINDOW IAW B737-700 AMM 56-12-11-000-801. ADJUSTED SHIMS AT UPPER HOUSING, AFT LOWER AND FWD HOUSING IAW AMM 56-12-11-820-801 2 H(6) - (11). INSTALLED R/H #2 OPENABLE WINDOW IAW AMM 56-12-11-400-801. ACCOMPLISHED CABIN PRESSURE LEAK TEST REF AMM 05-51-91-790-801. LEAK TEST OK. ACCOMPLISHED WINDOW HEAT SYSTEM - OPERATIONAL TEST REF AMM 30-41-00-710-801. OPS TEST NORMAL.