As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PIT - DURING RON VISIT, FOUND 4 CRACKS TOTAL .5 INCH LONG, 1 INCH LONG, 1.25 INCH LONG AND 1.5 INCH LONG IN LOWER WEB SKIN PANEL AT KEEL BEAM BETWEEN STATION 690 AND 727. EXTERNAL DOUBLER INSTALLED WITH TEMPORARY FASTENERS PER SRM 53-60-12 FIG 202. (M)