As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BWI- FLIGHT#3629. CREW REPORTED ON CLIMB AN INTERMITTANT SCREETCHING NOISE WAS HEARD WITH BOTH ENGINES AT TAKE-OFF POWER SETTINGS. NOISE WAS ACCOMPANIED BY AN INTERMITTANT VIBRATION. NOISE AND VIBRATION WENT AWAY WITH POWER REDUCTION. MAINTENANCE REPLACED LEFT ENGINE ASSEMBLY. AIRCRAFT RETURNED TO SERVICE.