# Airworthiness Directives; Fokker Services B.V. Airplanes
> **Rule** · Final rule; request for comments. · Published 2020-03-09 · Effective 2020-03-24 · 85 FR 13475
## Document
- **Document number:** 2020-04729
- **Category:** airworthiness
- **Manufacturer:** Fokker Services B.V.
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 85 FR 13475
- **Publication date:** 2020-03-09
- **Effective date:** 2020-03-24
- **FAA docket:** Docket No. FAA-2020-0105
## Abstract

The FAA is superseding Airworthiness Directives (ADs) 2012-22- 05 and 2018-19-03, which applied to certain Fokker Services B.V. Model F28 Mark 0070 and 0100 airplanes. AD 2012-22-05 required inspecting for cracks of the pistons on the main landing gear (MLG), and replacing the affected pistons if necessary. AD 2012-22-05 also required modifying the MLG, and revising the airplane maintenance program. AD 2018-19-03 required an inspection of the MLG, and replacement if necessary. This AD retains the requirements of AD 2012-22-05, expands the applicability, and requires a new modification or replacement of the MLG; as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD was prompted by a determination that the required heat treatment may not have been applied to certain MLG pistons. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2020/03/09/2020-04729/airworthiness-directives-fokker-services-bv-airplanes)
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