# Proposed AD 98-NM-309-AD: McDonnell Douglas Model DC-8 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2000-02-01
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 27, 1999, 64 FR 57806
- Comments due: December 13, 1999
- Became: [AD 2000-02-01](https://openairdocs.org/ad/2000-02-01)
- Docket: 98-NM-309-AD
- FR document: 99-28085
- Official PDF: https://openairdocs.org/files/sha256/98/d8/98d8c1a0989a664718d47063df079faf0586f6929f6ecd9c73a7a89287027c38 (from https://www.govinfo.gov/content/pkg/FR-1999-10-27/pdf/99-28085.pdf)
- Federal Register: https://www.federalregister.gov/documents/1999/10/27/99-28085/airworthiness-directives-mcdonnell-douglas-model-dc-8-series-airplanes
- Page: https://openairdocs.org/proposed/98-NM-309-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain McDonnell Douglas Model DC-8 series airplanes. This proposal would require detailed visual and eddy current inspections of the lower wing skin at the 3 outboard fasteners of the stringer 64 end fitting to detect cracks; and corrective actions, if necessary. This proposal is prompted by reports of fatigue cracks found in the lower wing skin initiating from the outboard fasteners of the stringer 64 end fitting. The actions specified by the proposed AD are intended to prevent such fatigue cracking, which could reduce structural integrity and loss of fail-safe capability of the airplane.

## Notices in this docket

- Oct 27, 1999: Notice of proposed rulemaking (NPRM). (first notice), FR document 99-28085, comments due Dec 13, 1999 (https://www.federalregister.gov/documents/1999/10/27/99-28085/airworthiness-directives-mcdonnell-douglas-model-dc-8-series-airplanes)

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