As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A MAINTENANCE VISIT, FOUND FIRST OBSERVER SEAT BACK CLOSE-OUT WEB CRACKED. CRACK ORIGINATED AT LIGHTNING HOLE AND ENDED AT EDGE. SRM DOES NOT GIVE A SPECIFIC REPAIR. FABRICATED AND INSTALLED REPAIR DOUBLER IAW FAA APPROVED DER TIMCO ENGINEERING SKETCH REO-04433.