What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Enroute koa, HI to van nuys, CA, at cruise altitude of FL400, right forward windshield cracked-non-impact related. Pilot requested descent, altitude change, and return to Honolulu. Pilot advised negative emergency. No assistance equipment requested. Aircraft landed uneventfully. Upon inspection, mechanics found right forward windshield with crack that appeared to propagate from upper edge vertically to bottom of windshield. Suspect that window heat created local hot spot/arch along upper edge causing window to crack.
As the FAA filed it
(-23) ENROUTE KOA, HI TO VAN NUYS, CA, AT CRUISE ALTITUDE OF FL400, RIGHT FORWARD WINDSHIELD CRACKED-NON-IMPACT RELATED. PILOT REQUESTED DESCENT, ALTITUDE CHANGE, AND RETURN TO HONOLULU. PILOT ADVISED NEGATIVE EMERGENCY. NO ASSISTANCE EQUIPMENT REQUESTED. AIRCRAFT LANDED UNEVENTFULLY. UPON INSPECTION, MECHANICS FOUND RIGHT FORWARD WINDSHIELD WITH CRACK THAT APPEARED TO PROPAGATE FROM UPPER EDGE VERTICALLY TO BOTTOM OF WINDSHIELD. SUSPECT THAT WINDOW HEAT CREATED LOCAL HOT SPOT/ARCH ALONG UPPER EDGE CAUSING WINDOW TO CRACK.