As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUSELAGE / R1 DOOR OPENING / AFT FRAME / INTERCOSTAL / STR.8A : CRACK REPAIR. INSPECTION OF THE R1 DOOR OPENING SURROUND STRUCTURE REVEALED A CRACK IN THE AFT DOOR FRAME INTERCOSTAL AT STRINGER 8A. THE CRACK IS TYPICAL OF BAC S/B 737-53A1108. THE INTERCOSTAL WAS REPAIRED WITH ALUMINUM ANGLES AND STRAPSPER THE BAC S/B AND PER ER/A 379563-14AD.