# Proposed AD 97-NM-274-AD: Fokker Model F.28 Mark 0070 and F.28 Mark 0100 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 98-04-50
- Action: Notice of proposed rulemaking (NPRM).
- Published: November 28, 1997, 62 FR 63291
- Comments due: December 29, 1997
- Became: [AD 98-04-50](https://openairdocs.org/ad/98-04-50)
- Docket: 97-NM-274-AD
- FR document: 97-31160
- Official PDF: https://openairdocs.org/files/sha256/fe/ca/feca996af0bb3b5d3b234ee982ac2bfbc28f27afca8a6b1014a2366dcb5d0195 (from https://www.govinfo.gov/content/pkg/FR-1997-11-28/pdf/97-31160.pdf)
- Federal Register: https://www.federalregister.gov/documents/1997/11/28/97-31160/airworthiness-directives-fokker-model-f28-mark-0070-and-f28-mark-0100-series-airplanes
- Page: https://openairdocs.org/proposed/97-NM-274-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to all Fokker Model F.28 Mark 0070 and F.28 Mark 0100 series airplanes. This proposal would require modification of the wing leading edge torsion box. This proposal is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by the proposed AD are intended to prevent a possible ignition hazard due to accumulation of water and fuel between the front spar and auxiliary spar, which could result in increased risk of an in-flight fire.

## Notices in this docket

- Nov 28, 1997: Notice of proposed rulemaking (NPRM). (first notice), FR document 97-31160, comments due Dec 29, 1997 (https://www.federalregister.gov/documents/1997/11/28/97-31160/airworthiness-directives-fokker-model-f28-mark-0070-and-f28-mark-0100-series-airplanes)

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