What was found
FUSELAGE : FORWARD AVIONICS COMPARTMENT MAIN DECK FLOOR SUPPORT APPOXIMATELY STATION 392 TO STATION 401 X = 30 FOUND CRACKED . FUSELAGE : FORWARD AVIONIC COMPARTMENT , CRACKED MAIN DECK FLOOR SUPPORT AT APPROXIMATELY STATION 392 TO STATION 401 X = 30 , REMOVED AND REPLACED FROM STATION 421.578 TO STATION 385 X = 30 AS PER SRM 51-31-01-0G . FLOOR SUPPORT FABRICATED BY MACHINING AS PER DOUGLAS DRAWING ABA 8304 REVISION B . REPAIR CLASSIFIED AS MAJOR PER GMM 6-2-100 .