What was found
LEFT SIDE EMERGENCY OVERWING EXIT PRODUCED A LOUD WHISTLING WHILE IN FLIGHT. R & R THE LT OVERWING EXIT HATCH IAW AMM 52-21-11, INSPECTED, AND FOUND DEBRIS ON SEAL, & SEAL TO NEEDS LUBRICATION. APPLIED LUBE IAW AMM 52-21-18. PERFORMED PRESSURE AND LEAK CHECK IAW AMM 05-53-00.