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Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.
Builders who report a missing piece often find it in one of these places. Tick each one off as you look.
LEGO's request form asks for the set number (9979) and each piece's element ID, both listed above.
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Duplo Figure, Early, Fire Helmet Red, Black Legs, White Buttons Print
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Duplo Figure, Early, Sailor Hat White, Blue Legs, Anchor Print
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Duplo Figure, Early, with Short Parted Hair Black, Dark Gray Legs, White Shirt, Light Blue Tie Print
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Duplo Figure, Early, with Short Parted Hair Light Gray, Black Legs, Light Lime Bow Tie, Glasses Print
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Duplo Figure, Early, Hair Bob Yellow, Green Legs, Red 'ZOO' Logo Print
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Duplo Figure, Early, Hair Bob Black, Blue Legs and Arms, Yellow Scarf with Red Dots, White Eyes Print
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Duplo Figure, Early, Hair Bob Brown, Blue Legs, Blue Overalls, Turned Down Nose Print
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Duplo Figure, Early, Hair Bob Brown, Yellow Legs, Yellow Arms, Yellow Scarf with Red Dots, White Eyes Print
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Duplo Figure, Early, Hard Hat White, Blue Legs, and Blue Overalls, Turned Down Nose Print
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Duplo Figure, Early, with Flat Cap Red, Black Legs, 2 Yellow Buttons, White Eyes Print
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Duplo Figure, Early, with Flat Cap Red, Yellow Legs, Yellow Recycle Logo, Turned Down Nose Print
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Duplo Figure, Early, Aviator Hat Red, White Legs, Top with Black Zipper and Racer #2 in Blue Circle Print
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Duplo Figure, Early, Hair Bob Black, White Legs, Yellow and Red Scarf Print
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Duplo Figure, Early, Aviator Hat Yellow, Blue Legs, Two Red Buttons, Pocket with Radio Print
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Duplo Figure, Early, Hair Bob Brown, Red Legs, Red Buttons and Gray Wrench, Turned Down Nose Print
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Duplo Figure, Early, Hair Bob Light Gray, Red Legs, Red Necklace, Gray Hair, Glasses Print
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Duplo Figure, Early, with Short Parted Hair Brown, Blue Legs, White Tennis Racket and Ball Print
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Tick each piece as you find it, or mark it missing.
LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for the set number and each piece's element ID, the number printed beside the piece in the parts list at the back of the instructions. This checker lists both.
Request a replacement from LEGOMark a piece missing and your list links it to an eBay search for that part, which also covers pieces from older or second-hand sets.
Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.
