Narrative:

Instructed by company to return to departure airport due to unauthorized corrosive material boarded in the bulk cargo compartment. Jettisoned approximately 40;000 lbs of fuel for landing at departure airport per checklist. Landed; had cargo removed; refueled; and departed for destination.

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Original NASA ASRS Text

Title: B777 First Officer reported returning to the departure airport after being notified they had unauthorized corrosive material onboard.

Narrative: Instructed by company to return to departure airport due to unauthorized corrosive material boarded in the bulk cargo compartment. Jettisoned approximately 40;000 lbs of fuel for landing at departure airport per checklist. Landed; had cargo removed; refueled; and departed for destination.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.