# Airworthiness Directives; McDonnell Douglas Model DC-10 Series Airplanes, Model MD-10 Series Airplanes, and Model MD-11 Series Airplanes
> **Rule** · Final rule. · Published 2001-07-12 · Effective 2001-08-16 · 66 FR 36441
## Document
- **Document number:** 01-17120
- **Category:** airworthiness
- **Manufacturer:** McDonnell Douglas Model DC-10 Series
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 66 FR 36441
- **Publication date:** 2001-07-12
- **Effective date:** 2001-08-16
- **FAA docket:** Docket No. 2000-NM-269-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC-10 series airplanes, Model MD-10 series airplanes, and Model MD-11 series airplanes, that requires repetitive inspections of the number 1 and 2 electric motors of the auxiliary hydraulic pump for electrical resistance, continuity, mechanical rotation, and associated wiring resistance/voltage; and corrective actions, if necessary. This amendment is necessary to prevent various failures of electric motors of the auxiliary hydraulic pump and associated wiring, which could result in fire at the auxiliary hydraulic pump and consequent damage to the adjacent electrical equipment and/or structure. This action is intended to address the identified unsafe condition.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2001/07/12/01-17120/airworthiness-directives-mcdonnell-douglas-model-dc-10-series-airplanes-model-md-10-series-airplanes)
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