Situational Awareness; Communication Breakdown
Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Hazardous Material Violation; Deviation / Discrepancy - Procedural Published Material / Policy
General Flight Cancelled / Delayed; General Maintenance Action
Human Factors
I was dispatched downline to ZZZ1 to retrieve unserviceable fuel components and tooling. Upon arrival; spoke with Aircraft Maintenance Technician X (AMT); who informed me that fuel levels in all [component] parts are at the required minimum for legal HAZMAT shipment. At that time; I prepared parts for shipment back to ZZZ Station. Took parts to gate at ZZZ1; had paperwork signed by Ramp Agent who placed items in Aft Cargo Bin for shipment to ZZZ. Then delivered Dangerous Goods Form (NOTAC) paperwork to operation agent/pilot and I proceeded to board aircraft. Upon arriving in ZZZ; a coworker informed me that HAZMAT shipment had leaked through boxes into baggage compartment on the B737-700 aircraft. This resulted in the aircraft being pulled from service. Day shift. [Recommend] to make sure procedures in the Maintenance Procedures Manual (MPM) are followed for removing fuel from unserviceable parts/ tooling. Procedures missed. HAZMAT Specialist.
Nine articles of HAZMAT fuel contaminated parts were loaded on aircraft. I verified with Operations and Ground personnel that all procedures were followed and signed two NOTAC's for the articles. Upon arrival; Ramp and Operations informed me [that] two boxes had leaked and we had a fuel spill in the Aft Cargo bin. Maintenance and Dispatch were notified and the aircraft was pulled from service. Crew is pretty much in the dark in this situation and has to trust others to do their jobs properly.
After arrival; a company HAZMAT Specialist and a B737-700 Captain were informed that two of the nine articles of unserviceable fuel components that were shipped in the Aft Cargo pit had leaked through their shipping containers. Aircraft was removed from service.