As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT FLT LEVEL 390 CABIN ALTITUDE LIGHT AND WARNING HORN CAME ON. CABIN PRESSURIZATION CLIMBING. EMERGENCY DECENT BEGAN. AT APPROX FLT LEVEL 180 PRESSURIZATION STBILIZED AND LIGHT AND HORN WENT OUT. / [01] C/W PART REPLACED TTG8Q00DFLA0;[02] ACCOMPLISHED CONDITIONAL INSPECTIONS CABIN PRESSURE LEAK TEST AMM 05-51-91 & CABIN DEPRESSURIZATION AMM 05-51-81 DEFECTS NOTED ON TTG8Q00FLA0; TTG8Q00DFKPR & TTG8Q00DFCM2 ALL DEFECTS HAVE BEEN RESOLVED ON W/O 33368422