As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT APPROX 27000' ON CLIMB-OUT, CAPT'S L-1 WINDOW CRACKED/SHATTERED AND BEGAN ARCING. COMPLIED WITH RED TABS PROCEDURES. RETURNED TO MEMPHIS. REMOVED CAPT'S NR 1 WINDOW AND COMPLIED WITH PREPARATION FOR INSTALL IAW B727-200 AMM 56-11-011-4. COMPLETED INSTALLATION OF WINDSHIELD AND APPLIED AERODYNAMIC SEALANT REF 727-200 AMM 56-11-011-4. REINSTALLED GLARESHIELD PER 7272-200 AMM 25-10-062-4.