What was found
DURING A SCHEDULED INSPECTION AT AERO CORP, FOUND LONGERON 29L CORRODED BETWEEN STA 389 - STA 408 AROUND NUTPLATES FOR RADIO ALTIMETER NR 1. REMOVED LONGERON 29L AND 30 FOR ACCESS TO CORROSION. UPON REMOVAL OF LONGERON 30, A 5 INCH CRACK WAS FOUND IN THE FACTORY SPLICE. FABBED AND INSTALLED LONGERON 30, LONGERON SPLICES 29L AND 30, AND INSTALLED NEW ALTIMETER DOUBLER IAW DC9 SRM'S 51-10-3, 53-01 FIG 1, AND DOUGLAS DWG NR 5911412.