As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT 14500 FT AUTO FAIL AND STANDBY LIGHTS CAME ON. I CALLED FOR THE QRH, AS MY F.O. STARTED THE QRH FOR CABIN ALTITUDE LIGHT AND HORN CAME ON. I IMMEDIATELY STARTED A DECENT FROM 15000 FT TO 10000 FT, WE RAN THE QRH AND WAS NOT ABLE TO MAINTAIN CABIN ALTITUDE AT ALL DURING DECENT. ADJUSTED AND SECURED WATER EXTRACTOR DUCT ON RIGHT HAND PACK IAW B737 AMM 21-51-32, PERFORMED OPERATIONAL CHECK IAW B737 AMM 21-31-00 OPS CHECK AND LEAK CHECK GOOD.