# Airworthiness Directives; Fokker Model F28 Mark 0070 and Mark 0100 Series Airplanes
> **Rule** · Final rule. · Published 1998-08-14 · Effective 1998-09-18 · 63 FR 43612
## Document
- **Document number:** 98-21653
- **Category:** airworthiness
- **Manufacturer:** Fokker Model F28 Mark 0070 and Mark 0100 Series
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 63 FR 43612
- **Publication date:** 1998-08-14
- **Effective date:** 1998-09-18
- **FAA docket:** Docket No. 97-NM-248-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to all Fokker Model F28 Mark 0070 and Mark 0100 series airplanes, that requires inspection of the wing leading edge sections for the correct amount of bleed air exhaust holes, and corrective actions, if necessary. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent malfunction of the wing leading edge thermal anti-ice system, which could result in reduced controllability of the airplane and/or reduced structural integrity of the wing due to overheating.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1998/08/14/98-21653/airworthiness-directives-fokker-model-f28-mark-0070-and-mark-0100-series-airplanes)
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