As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT FL 360 CABIN ALT BEGAN TO RISE UP TO 8700 FT. ROSE UP APPROX 100 FT PER SEC. TRANSFERRED TO NRWC 644-DFW-02165. TROUBLE SHOT IAW FIM 21-31-00. R & R ELECTRO PNEUMATIC OUT FLOW CONTROL VLV IAW MM CH 21-31-03. COMPLIED WITH FUNCTIONAL TEST. ALL CHECKS GOOD, LEAK CHECKED GOOD, WITHIN RATE. REF NRWC 664-DFW 02165 FOR OTHER WORK PERFORMED. DAMAGED FITTING FOUND ON OUT FLOW VLV.