Commercial Fixed Wing
Maintenance Avionics
Situational Awareness; Physiological - Other; Communication Breakdown; Troubleshooting
Deviation / Discrepancy - Procedural Maintenance; Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Environment - Non Weather Related; Human Factors
Aircraft X was assigned to the hangar midnight crew for the 'A' check.  The first contact that technicians had with the aircraft occurred at approximately XA00 local time.  Avionics technicians; including myself; began the night with completing operational checks within the aircraft in preparation for the rest of the crew to perform their assigned tasks. Later technicians began to migrate in and out of the flight deck; cabin; galleys; lavs; etc.; to their assigned tasks.  All technicians were in compliance with the mask policy.Approximately 4 hours later; the Lead Technician and Supervisor alerted everyone on board that the aircraft had not gone through its disinfecting process which usually occurs at the gate upon arrival.  The aircraft was cleared and the Lead performed the disinfecting procedures.Concerns were raised from this event.  The potential of an infected passenger being on board and the potential of technicians being exposed to COVID.The protocol for traveling to ZZZ is to have a COVID test within an XX hour period of departure time.  However; once you are tested there are no guarantees that the individual will quarantine or shelter in place prior to boarding the aircraft for departure. The cleaners finally arrived for the disinfecting process at midnight. I asked the supervisor what the protocol is for an event such as this and he was unaware of one in place.This aircraft originated from ZZZ1.
Technician reported the maintenance crew was advised the aircraft had not been disinfected after the inspection and repairs were already in progress.