No Aircraft
Maintenance Powerplant; Maintenance Airframe
Situational Awareness; Training / Qualification; Human-Machine Interface
Deviation / Discrepancy - Procedural Hazardous Material Violation; Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Human Factors
The purpose of this report is to identify an error I made of shipping an unserviceable Hazmat part.  The error was in not identifying the part shipped as Hazmat and completing the Shippers Declaration of Dangerous Goods and not properly following the procedures in handling of Dangerous Goods shipment.  I am employed as a Stock Clerk. I have XX years experience in my position and have worked [this station's stores for years].  During my service as a Stock Clerk I have handled Hazmat; and I am familiar with the importance of properly identifying and the procedures involved with shipping Hazmat. The part in question was [a drain] removed from an aircraft.  This part when used and removed from aircraft; may contain some fuel residue which would qualify as Hazmat.  This part is a Class 9 miscellaneous.  I had not handled this particular part before; and in processing removal didn't notice the Hazmat banner on paperwork.  I also didn't notice any odor of fuel in packing the part.  A key error on my part was not running the part number in [Hazmat database] before shipping item.  Items such as this are considered NON HAZARDOUS when new from vendor; and only become hazardous upon removal; due to possibility of fuel residue.  The day of my mistake was a particularly busy day as I shipped numerous parts; received numerous parts and had other mitigating circumstances which divided my attention such as phones calls and delivering parts to aircraft.  I need to always check the [Hazmat database] website and run the part to make sure with unfamiliar parts especially; and if any doubt call the Hazmat department.  I also need to narrow my focus on the task at hand and try not to do so much at once.
Commercial Airline Maintenance Personnel self reported Hazmat shipping violation by not following maintenance procedure.