What was found
CREW ABORTED TAKEOFF (AT 10 KTS) AFTER HEARING LOUD BOOM COMING FROM THE BACK. NO ANNUNCIATORS WERE PRESENT. CREW NOTICED A LARGE HOLE ON THE ACOUSTIC SEAL AND CONSTANT LOUD HISSING COMING FROM HOLE. // SIGNOFF // FOUND ACOUSTIC SEALS LEAKING AND UPPER CHANNEL ASSEMBLY CRACKED. REMOVED AND REPLACED UPPER, LOWER FWD, AND LOWER AFT ACOUSTIC INFLATABLE SEALS AND UPPER CHANNEL ASSEMBLY IAW CE560XL MM 52-10·04, OPERATIONAL AND LEAKED CHECK GOOD IAW CE560XL MM 36-15-00. NO DEFECTS NOTED.