As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REAR FLIGHT ATTENDANT REPORTED A LOUD SQUEAL FROM RIGHT REAR DOOR WHICH STARTED AT 1.8 PSID (500' CABIN 4000' ALT) AND STOPPED AT 6.0 PSID (2100' CABIN 18000' ALT). MAINTENANCE INSPECTED R2 DOOR AND FOUND SLIDE BUSTLE STRAPS HANGING LOOSE - RE-ATTACHED STRAPS.