Is it acceptable to have only one “inspected/tested” Form 1, without any other historical, to install a component?

• If the component is on condition, it is sufficient provided that block 12 indicates the tasks performed in the inspection/test and the maintenance data used (or there is traceability to the documentation where the information can be found).

• If the component is hard time (on condition with maintenance), this Form 1 would only be accepted if block 12 contains information about the last time the corresponding tasks were performed, or if Form 1 accompanies the relevant documentation with the last completion of these tasks. Preferably both.

• If the component is life limited, back-to-birth or back-to-overhaul traceability shall always be required. In case you have an inspected/tested Form 1 you should come in block 12 information from TSN/TSO or CSN/CSO and, in addition, it is accompanied (at least) by the last Form 1 of overhaul or new, or any other documentation clearly demonstrating its traceability to zero.