As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
*CORROSION ON AFT CARGO DOOR SILL. AREAS MARKED. (C-CHECK RO 9-21-21) REPLACED THE AFT CARGO DOOR SILL REF MITSUBISHI DWG MM670-35085 REV L AND CRJ 700 SRMS 51-42-06-001-001-A01, 51-42-13-001-001-A01, AND 51-42-21-001-001-A01. NO LEAKS NOTED. COMPLIED WITH SKYWEST FORM M-337 AND TASK 51-900-1002-SKY.