Situational Awareness
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Maintenance; Deviation / Discrepancy - Procedural Published Material / Policy
Human Factors
I was complying with a functional check of the aileron cable tension in the forward cargo area. With this task you must remove the forward bulk head right hand panel and cargo area floor boards. After the aileron cable tension checks; I completed the job card signing off all the tasks including the completion of the bulk head blow out panel and floor boards. I failed to secure the floor boards and the bulk head panel resulting in the aircraft flying in an unsafe condition in which could of resulted in a catastrophic result. As a maintainer it is my responsibility to make the sure any and all aircraft is it a 100% airworthy. In the future; any task that is not completed will not be signed to make sure it is completed to ensure the aircraft is airworthy.
Maintenance Technician reported failing to secure the floor boards and bulkhead panel after completing a functional check.