What was found
CAPT'S L-2 WINDOW CRACKED AND THEN DELAMINATED. ARCING NOISE PRIOR TO NOTICEABLE CRACKING SOUND. COMPLIED WITH QRH PROCEDURE. REMOVED AND REPLACED CAPT'S L-2 WINDOW PER MM. OPS CHECK GOOD. (PN-OFF-141A4810-34, SN-07360H1656, PN-ON 141A4810-37, SN-WN0248, WHICH IS BORROWED PAR