What was found
CORROSION NUT DOUBLER FWD OF FRAME 77 BETWEEN STRINGERS 29L AND 29R. REMOVED AND REPLACED DOME NUT DOUBLER FWD OF FRAME 77 STRINGER 29L AND 29R REF SRM 51-41-02, 51-40-02, 51-23-04. SEE WO H5692, SEQ 1618 SN 443 FOR REPAIR DETAILS. AIRCRAFT REMAINS IN HEAVY CHECK.