What was found
DURING SCHEDULED C-11 CHECK WHILE PERFORMING NR 2153, DURING THE PEELING UP OF THE LT HORIZONTAL STABILIZER FRONT SPAR WEB, FOUND UPPER SKIN INNER HAT SECTION, CORRUGATED SKIN CRACKED; FS1070, HSS199, WL278. REPAIRED IAW SMP 583, FIG 55-20-07. NR 2172 / PSE 55-10-02, AD 2012-06-09.