As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CHECK-C MAINT, THE FUSELAGE SKIN WAS REMOVED TO A THICKNESS OF 0.029 IN AT LT STA 237 BETWEEN LONGERON 17L AND 18L, MEASURED WITH NDT U.T. THICKNESS STRESSTEL INSTRUMENT. REMEASURED SKIN THICKNESS WITH NORTEC 1000 AND KRAUTKRAMER PENCIL THINKNESS PROBE AND FOUND 0.008 IN MATERIAL REMOVED. MATERIAL LEFT FOUND TO BE 0.034 INCHES. INSTALLED REPAIR PER SRM 53-04-12B.