# Proposed AD FAA-2018-0707: Fokker Services B.V. Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2018-24-05
- Products: Fokker Services B.V.
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 13, 2018, 83 FR 39918
- Comments due: September 27, 2018
- Became: [AD 2018-24-05](https://openairdocs.org/ad/2018-24-05)
- Docket: FAA-2018-0707 (https://www.regulations.gov/docket/FAA-2018-0707, where comments are filed)
- FR document: 2018-17322
- Official PDF: https://openairdocs.org/files/sha256/13/5f/135f927cee242398e344a4755e74fbfca0acdbe1b528d6aef0f0646bdaa9f1a5 (from https://www.govinfo.gov/content/pkg/FR-2018-08-13/pdf/2018-17322.pdf)
- Federal Register: https://www.federalregister.gov/documents/2018/08/13/2018-17322/airworthiness-directives-fokker-services-bv-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C419E6BDCCFD2DD4862582E90049F05D.0001
- Page: https://openairdocs.org/proposed/FAA-2018-0707

## Summary

We propose to adopt a new airworthiness directive (AD) for all Fokker Services B.V. Model F28 airplanes. This proposed AD was prompted by reports that certain T-unions with an integral filter in the landing gear hydraulic control system disconnected from their housing and, in some cases, migrated. This proposed AD would require replacing certain T-unions with an integral filter with T-unions without an integral filter. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Aug 13, 2018: Notice of proposed rulemaking (NPRM). (first notice), FR document 2018-17322, comments due Sep 27, 2018 (https://www.federalregister.gov/documents/2018/08/13/2018-17322/airworthiness-directives-fokker-services-bv-airplanes)

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