What was found
SUPPLEMENTAL INFORMATION: FOUND CRACK AT FRAME STRUCTURE STA 312 AT L1 DOOR UPPER SILL BETWEEN STRINGER 5L AND STRINGER 6L . / PERFORMED HFEC AT L1 DOOR UPPER SILL BETWEEN STR 5L AND STR 6L VERIFIED CRACK. TRIMMED OUT FRAME AND REMOVED DAMAGE. PERFORMED HFEC ON TRIM OUT; NO CRACKS FOUND. PERFORMED HFEC ROTO ON OPEN HOLES; NO CRACKS FOUND. FABRICATED AND HEAT TREATED REPAIR ANGLE. TREATED AND PRIMED REPAIR ANGLE AND REPAIR AREA. INSTALLED REPAIR ANGLE IN REF B737 SRM 51-40-02-0G-0; AAR RES #2015426-2 REV IR AND SWA EA #1-753-36114 REV IR