Commercial Fixed Wing
Maintenance Powerplant; Maintenance Apprentice
Communication Breakdown
Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Maintenance
General Maintenance Action
Procedure; Human Factors; Company Policy
Aircraft X was placed in short term storage on [date]. The step in Job Card XX to disconnect the main batteries was accomplished/stamped off; but not documented in the AML as required. The same day; 2hrs later; Job Card XY was issued to take Aircraft X out of short term storage. The step to reconnect the aircraft batteries was accomplished/stamped off; but once again it wasn't documented in the AML as required. Both groups of technicians failed to show compliance to document in the AML these steps. Paperwork audit found the discrepancy and it has been rectified on AML XX; to show it had been accomplished. A message has also been sent to records to show correct date work was complied with.  Miscommunication between technicians assigned both job cards.  Technicians need to verify work accomplished on job cards before submitting finalized package. Better communication between technicians assigned to the tasks.
Technician reported problems with job cards not being signed off correctly.