# Airworthiness Directives; McDonnell Douglas Model MD-11, MD-11F, DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F (KC-10A and KDC-10), DC-10-40, DC-10-40F, MD-10-10F, and MD-10-30F Airplanes
> **Rule** · Final rule. · Published 2007-09-21 · Effective 2007-10-26 · 72 FR 53927
## Document
- **Document number:** E7-18459
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 72 FR 53927
- **Publication date:** 2007-09-21
- **Effective date:** 2007-10-26
- **FAA docket:** Docket No. FAA-2007-28301
## Abstract

The FAA is adopting a new airworthiness directive (AD) for all McDonnell Douglas Model MD-11 and MD-11F airplanes and certain Model DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F (KC-10A and KDC-10), DC-10-40, DC-10-40F, MD-10-10F, and MD-10-30F airplanes. This AD requires rerouting system 3 hydraulic piping, installing new pipe assemblies and unions, and installing redesigned support brackets for the system 3 hydraulic piping. This AD results from a report of damage to the hydraulic system that occurred when pieces of a ruptured tire from the left main landing gear penetrated the wing trailing edge access panel during takeoff. We are issuing this AD to prevent damage to the system 3 hydraulic piping, which could result in loss of the hydraulic system.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2007/09/21/E7-18459/airworthiness-directives-mcdonnell-douglas-model-md-11-md-11f-dc-10-10-dc-10-10f-dc-10-15-dc-10-30)
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