# Proposed AD 94-NM-176-AD: McDonnell Douglas Model DC-10-10, -15, -30, -40, and KC-10 (Military) Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 95-11-11
- Action: Notice of proposed rulemaking (NPRM).
- Published: January 18, 1995, 60 FR 3590
- Comments due: March 14, 1995
- Became: [AD 95-11-11](https://openairdocs.org/ad/95-11-11)
- Docket: 94-NM-176-AD
- FR document: 95-1134
- Official PDF: https://openairdocs.org/files/sha256/1a/75/1a75385789df39fb60a4624718aab2846c5d09f6b3069ae67096800dbc0b42e4 (from https://www.govinfo.gov/content/pkg/FR-1995-01-18/pdf/95-1134.pdf)
- Federal Register: https://www.federalregister.gov/documents/1995/01/18/95-1134/airworthiness-directives-mcdonnell-douglas-model-dc-10-10--15--30--40-and-kc-10-military-series
- Page: https://openairdocs.org/proposed/94-NM-176-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain McDonnell Douglas DC-10 and KC-10 series airplanes. This proposal would require repetitive eddy current inspections to detect fatigue cracking of the pylon aft bulkhead flange, upper pylon box web, fitting radius, and adjacent tangent areas; and repair, if necessary. This proposal is prompted by fatigue cracking found in the wing pylon aft bulkheads on two airplanes. The actions specified by the proposed AD are intended to prevent failure of the wing pylon aft bulkhead due to fatigue cracking, which could lead to separation of the engine and pylon from the airplane.

## Notices in this docket

- Jan 18, 1995: Notice of proposed rulemaking (NPRM). (first notice), FR document 95-1134, comments due Mar 14, 1995 (https://www.federalregister.gov/documents/1995/01/18/95-1134/airworthiness-directives-mcdonnell-douglas-model-dc-10-10--15--30--40-and-kc-10-military-series)

---
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.