Part catalog
To detect and correct cracking in the aft fuselage skin along the longitudinal edges of the bonded s OPEN CSN External HFEC Ins. & External GVI per SB 53-1187 R2 3700 X 34039 CSN 4561 AD Status is OPEN. Repetitive inspection must be done every 3700 FC (zone 1 and 3)
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