A320
Maintenance Airframe; Maintenance Powerplant
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy
Aircraft; Manuals; MEL
Aircraft X arrived in ZZZ with a PIREP (Pilot Report) 'AMBER ECAM MSG COND FWD CRG ISOL VALVE'. A history check revealed that the aircraft had the same fault on [the day prior] and MEL 21-XXX C/N 11XXXXX was applied. The MEL (Minimum Equipment List) was cleared by ZZZ1 Maintenance on the RON (Remain Overnight) and the fault repeated during [the] flight to ZZZ. Since it didn't complete 1 flight cycle before faulting again I re-opened the MEL 21-XXX C/N 11XXXXX. About 1/2 hour later began researching for a TSM (Trouble Shooting Manual) and parts to update the item and that is when I found that the aircraft does not have a FWD cargo isolation valve installed. The MEL does not contain any effectivity information and the aircraft was clearly faulting a FWD cargo isolation valve. I had never heard of an Airbus displaying an ECAM (Electronic Centralized Aircraft Monitor) fault of a component that is not installed in the aircraft and had no reason to question that MEL 21-XXX was not an acceptable deferral for the fault.If aircraft effectivity was contained in the MEL this would have been avoided.
Air Carrier Maintenance Technician reports a conflict in aircraft parts documentation.