Message: VERY LOUD CRACKLING/VIBRATION NOISE COMING FROM AREA BETWEEN FCP AND CENTER WINDSHIELD. NOISE BEGAN AT APPROX 2000 FT AND STOPPED AT APPROX 16000 FT DURING
Message: VERY LOUD CRACKLING/VIBRATION NOISE COMING FROM AREA BETWEEN FCP AND CENTER WINDSHIELD. NOISE BEGAN AT APPROX 2000 FT AND STOPPED AT APPROX 160000 FT DURING CLIMB.