# Airworthiness Directives; McDonnell Douglas Model 717 Series Airplanes
> **Rule** · Final rule. · Published 2001-08-27 · Effective 2001-10-01 · 66 FR 44957
## Document
- **Document number:** 01-21396
- **Category:** airworthiness
- **Manufacturer:** McDonnell Douglas Model 717 Series
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 66 FR 44957
- **Publication date:** 2001-08-27
- **Effective date:** 2001-10-01
- **FAA docket:** Docket No. 2001-NM-47-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model 717 series airplanes, that requires repetitive inspections of the rod ends of the spoiler hold-down actuators for breakage along the intersection of the thread runout and the outer spherical surface of the lug; and replacement of any broken rod end of the spoiler hold-down actuators with a new rod end. This AD also requires replacement of the rod ends of the spoiler hold-down actuators with new rod ends, and reidentification of the spoiler hold-down actuators, which constitutes terminating action for the repetitive inspections. This action is necessary to prevent failure of the rod ends of the spoiler hold-down actuators due to fatigue, which could result in loss of the back-up protection of the spoiler float hold-down and unavailability of monitoring for an uncommanded spoiler movement. This action is intended to address the identified unsafe condition.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2001/08/27/01-21396/airworthiness-directives-mcdonnell-douglas-model-717-series-airplanes)
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