As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DUCT PRESSURES FROM APU ZERO WITH APU RUNNING, APU BLEED SWITCH ON, ISOLATION VALVES OPEN, AND ENGINE (BLEED) OFF LIGHTS DISPLAYED ON BOTH ENGINES. VALVE VERIFIED CLOSED. MAY NEED TO REPLACE CLAMP. IPC REF: 49-27-00A-000B ITEM 40 PCN: 651-1454. -INF- :REF ABOVE UPDATE BY SFOEG IT SHOULD READ WILL NEED TO REPLACE CLAMP. REPLACED FLOW SENSE MODULE MR49115 PER MM.