What was found
AUDIBLE SHUDDER OCCURRED AFTER LIFT OFF, ACCOMPANIED BY AIRFRAME SHUDDER. OCCURRED AT FIRST POWER REDUCTION. VIBRATION CONTINUED UNTIL AIRCRAFT RETURNED TO ORD. SECURED RIGHT PACK PRESSURIZATION BOOT AT FORWARD END OF PACK BAY.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AUDIBLE SHUDDER OCCURRED AFTER LIFT OFF, ACCOMPANIED BY AIRFRAME SHUDDER. OCCURRED AT FIRST POWER REDUCTION. VIBRATION CONTINUED UNTIL AIRCRAFT RETURNED TO ORD. SECURED RIGHT PACK PRESSURIZATION BOOT AT FORWARD END OF PACK BAY.