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LEGO Missing Piece Checker

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.

Billund Airport

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4000016 Billund Airport

281 pieces in 65 part and color combinations.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

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Piece checklist

Plates 117 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×1
  • Plate 6 x 12 Black Part 3028 Element 302826 ×4
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×2
  • Plate 1 x 2 Dark Azure Part 3023 Element 4653988 ×1
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 ×2
  • Plate 1 x 1 Dark Green Part 3024 Element 6618077 or 6055169 1 spare in the box ×2
  • Plate 1 x 3 Dark Green Part 3623 Element 6618081 or 6013975 ×2
  • Plate 1 x 1 Green Part 3024 Element 302428 1 spare in the box ×3
  • Plate 1 x 3 Green Part 3623 Element 4107758 or 362328 ×3
  • Plate 2 x 2 Green Part 3022 Element 302228 ×2
  • Plate 2 x 3 Green Part 3021 Element 302128 ×3
  • Plate 1 x 1 Light Bluish Gray Part 3024 Element 4211399 1 spare in the box ×3
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×5
  • Plate 1 x 1 Orange Part 3024 Element 4524929 or 4203454 1 spare in the box ×3
  • Plate 1 x 2 Red Part 3023 Element 302321 ×1
  • Plate 1 x 2 Tan Part 3023 Element 4113917 or 302305 ×8
  • Plate 1 x 1 Trans-Clear Part 3024 Element 6513962 or 6252041 1 spare in the box Also in White ×17
  • Plate 1 x 2 Trans-Clear Part 3023 Element 6514001 or 6240204 Also in White ×25
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 1 spare in the box Also in Trans-Clear ×6
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 Also in Trans-Clear ×6
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×8
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×4
  • Plate 3 x 3 Cross White Part 15397 Element 6099412 ×1
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×1
  • Plate 1 x 6 Yellow Part 3666 Element 366624 ×4

Tiles 81 pieces

  • Tile 1 x 1 with Groove Black Part 3070b Element 307026 1 spare in the box Also in Dark Bluish Gray ×4
  • Tile 1 x 8 with 'Billund Airport' Print Black Part 4162pr0000 Element 6103913 ×1
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×7
  • Tile 1 x 1 with Groove Dark Bluish Gray Part 3070b Element 4210848 1 spare in the box Also in Black ×2
  • Tile 1 x 2 with Groove Dark Bluish Gray Part 3069b Element 4211052 ×8
  • Tile 1 x 4 with Groove Dark Bluish Gray Part 2431 Element 4211053 ×3
  • Tile 2 x 2 with Groove Dark Bluish Gray Part 3068b Element 4211055 ×3
  • Tile 1 x 1 with Groove Light Bluish Gray Part 3070b Element 4211415 1 spare in the box ×17
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×7
  • Tile 1 x 3 Light Bluish Gray Part 63864 Element 4558169 ×2
  • Tile 1 x 4 with Groove Light Bluish Gray Part 2431 Element 4211356 or 2431194 ×7
  • Tile 2 x 2 with Groove Light Bluish Gray Part 3068b Element 4211413 ×6
  • Tile 1 x 1 with Groove Tan Part 3070b Element 4125253 1 spare in the box ×5
  • Tile 1 x 2 with Groove Tan Part 3069b Element 4114026 ×3
  • Tile 1 x 3 White Part 63864 Element 6552134 or 6548270 ×5
  • Tile 1 x 1 with Groove Yellow Part 3070b Element 307024 1 spare in the box ×1

Bricks Sloped 24 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Blue Part 54200 Element 4504380 or 4296154 1 spare in the box ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Blue Part 54200 Element 4504374 or 4502092 1 spare in the box ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Flat Silver Part 54200 Element 6078609 1 spare in the box ×4
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Red Part 54200 Element 5074621 or 4504379 1 spare in the box ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Clear Part 54200 Element 6245250 or 4244362 1 spare in the box Also in White ×12
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) White Part 54200 Element 6550179 or 4504369 1 spare in the box Also in Trans-Clear ×4
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Yellow Part 54200 Element 4504381 or 4283095 1 spare in the box ×1

Plates Round Curved and Dishes 12 pieces

  • Plate Round 1 x 1 with Solid Stud Blue Part 6141 Element 614123 1 spare in the box ×4
  • Plate Round 1 x 1 with Solid Stud Flat Silver Part 6141 Element 4633691 1 spare in the box ×4
  • Plate Round 1 x 1 with Solid Stud White Part 6141 Element 6601919 or 614101 1 spare in the box ×4

Bricks 11 pieces

  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×3
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×1
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×6
  • Brick 1 x 3 White Part 3622 Element 6550143 or 362201 ×1

Plants & Trees 11 pieces

  • Plant, Flower, Plate Round 1 x 1 with 4 Petals Bright Green Part 33291 Element 6170300 or 4619599 1 spare in the box ×7
  • Plant, Flower, Plate Round 1 x 1 with 4 Petals Bright Light Orange Part 33291 Element 6170304 or 4624184 1 spare in the box ×4

Bricks Curved 9 pieces

  • Brick Curved 2 x 2 x 2/3 Flat Silver Part 15068 Element 6083508 ×5
  • Brick Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges] Flat Silver Part 11153 Element 6078607 ×4

Plates Special 6 pieces

  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Light Bluish Gray Part 87580 Element 6126082 or 4565393 ×5
  • Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip] Red Part 61252 Element 6335377 or 4524644 ×1

Bricks Special 4 pieces

  • Brick Special 1 x 1 with Stud on 1 Side White Part 87087 Element 6550190 or 4558952 ×4

Minifig Accessories 3 pieces

  • Equipment Telescope / Torch / Spyglass, Support Round 1 x 1 x 1 2/3 Black Part 64644 Element 4538456 ×3

Bricks Round and Cones 2 pieces

  • Brick Round 1 x 1 Open Stud Metallic Silver Part 3062b Element 6410057 or 6092106 ×2

Bars, Ladders and Fences 1 piece

  • Bar 3L White Part 87994 Element 6552205 or 6428803 1 spare in the box ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

Ask LEGO

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 LEGO

Buy the piece

Mark 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.

Keep a record

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.

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