# Airworthiness Directives; Fokker Model F27 Mark 050, 200, 500, and 600 Series Airplanes
> **Rule** · Final rule. · Published 2000-03-08 · Effective 2000-04-12 · 65 FR 12073
## Document
- **Document number:** 00-5334
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 65 FR 12073
- **Publication date:** 2000-03-08
- **Effective date:** 2000-04-12
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain Fokker Model F27 Mark 050, 200, 500, and 600 series airplanes, that requires installation of certain components, and revisions of the Airplane Flight Manual. This action is necessary to prevent undetected failures of the horizontal and vertical stabilizer de-icing system, which could result in reduced controllability of the

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2000/03/08/00-5334/airworthiness-directives-fokker-model-f27-mark-050-200-500-and-600-series-airplanes)
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