# Diamond Aircraft Mandatory Service Bulletin 40-087: Revision 3

- Rights: © Diamond Aircraft. Filed by the FAA in regulations.gov docket FAA-2025-5397; AD 2026-06-03 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.
- Document: [Diamond Aircraft Mandatory Service Bulletin 40-087](https://openairdocs.org/service-documents/diamond/sb-40-087.md)
- Title as filed: Diamond Aircraft Industries MSB 40-087 Rev 3
- Pages: 10
- PDF: https://openairdocs.org/files/sha256/bf/c1/bfc19fbb697cd1116a44b443937de6a4eaacb339c5f17a2292108825a3bdec99
- Page: https://openairdocs.org/service-documents/diamond/sb-40-087/file/bfc19fbb697c

## Text

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### Page 8 (OCR)

Diamond Aircraft Industries  WORK INSTRUCTION  ›Diamond.  AIRCRAFT*
Model DA 40
INSTRUCTIONS
NOTE: the following images show the difference between the two types of fuel tank connection
hoses (flexible couplings) in the field.
• BENOLPRESS, this fuel tank connection hose has a light blue layer in the cross-section. Only a
fraction of these hoses come from the affected two batches.
BENOLPRESS
D41-2817-10-70, this fuel tank connection hose has an all black cross section and is not
affected.
D41-2817-10-70
not affected
WI-MSB 40-087 Rev. 0  © DAI 2019 ALL RIGHTS RESERVED, PROPRIETARY DOCUMENT  Internet: www.diamondair.com
Page 2 of 4  Email: Techpubs@diamondair.com
01 July 2019

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