# Proposed AD 95-NM-199-AD: McDonnell Douglas Model DC-10 Series Airplanes and KC-10A (Military) Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 96-24-15
- Action: Supplemental notice of proposed rulemaking; reopening of comment period.
- Published: October 4, 1996, 61 FR 51845
- Comments due: October 30, 1996
- Became: [AD 96-24-15](https://openairdocs.org/ad/96-24-15)
- Docket: 95-NM-199-AD
- FR document: 96-25460
- Official PDF: https://openairdocs.org/files/sha256/31/89/31898391d66c4f1ebb03b0f8691c6a302aad654fc8d2371599dce72a19ff72d5 (from https://www.govinfo.gov/content/pkg/FR-1996-10-04/pdf/96-25460.pdf)
- Federal Register: https://www.federalregister.gov/documents/1996/10/04/96-25460/airworthiness-directives-mcdonnell-douglas-model-dc-10-series-airplanes-and-kc-10a-military
- Page: https://openairdocs.org/proposed/95-NM-199-AD

## Summary

This document revises an earlier proposed airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC-10 series airplanes, and KC-10A (military) airplanes, that would have required high frequency eddy current inspection(s) to detect cracks in the secondary pivot support of the horizontal stabilizer, and various follow-on actions, if necessary. That proposal was prompted by reports of crack development in the secondary pivot support of the horizontal stabilizer due to fatigue. This action revises the proposed rule by adding repetitive visual inspections. The actions specified by this proposed AD are intended to prevent such fatigue cracking, which could result in reduced structural integrity of the horizontal stabilizer and, subsequently, lead to reduced controllability of the airplane.

## Notices in this docket

- Mar 22, 1996: Notice of proposed rulemaking (NPRM). (first notice), FR document 96-6931, comments due May 17, 1996 (https://www.federalregister.gov/documents/1996/03/22/96-6931/airworthiness-directives-mcdonnell-douglas-model-dc-10-series-airplanes-and-kc-10a-military)
- Oct 4, 1996: Supplemental notice of proposed rulemaking; reopening of comment period., FR document 96-25460, comments due Oct 30, 1996 (https://www.federalregister.gov/documents/1996/10/04/96-25460/airworthiness-directives-mcdonnell-douglas-model-dc-10-series-airplanes-and-kc-10a-military)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.