What was found
PASSENGER DOOR BACK UP SILL FROM BS 310 - 349, STRINGER 21L IS CORRODED. REMOVED AND REPLACED THE DOOR SILL IAW SRM 51-40-11-001-001-A01, 51-42-06-001-001-A01, AND 51-42-21-001-001-A01.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PASSENGER DOOR BACK UP SILL FROM BS 310 - 349, STRINGER 21L IS CORRODED. REMOVED AND REPLACED THE DOOR SILL IAW SRM 51-40-11-001-001-A01, 51-42-06-001-001-A01, AND 51-42-21-001-001-A01.