# Proposed AD 2001-NM-47-AD: McDonnell Douglas Model 717 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2001-17-21
- Products: McDonnell Douglas
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: May 15, 2001, 66 FR 26817
- Comments due: June 29, 2001
- Became: [AD 2001-17-21](https://openairdocs.org/ad/2001-17-21)
- Docket: 2001-NM-47-AD
- FR document: 01-12176
- Official PDF: https://openairdocs.org/files/sha256/f1/35/f135ac7e437ad6843dbe9e68e86029c7fafd84da5f3c28a507c3e924c0e0f35d (from https://www.govinfo.gov/content/pkg/FR-2001-05-15/pdf/01-12176.pdf)
- Federal Register: https://www.federalregister.gov/documents/2001/05/15/01-12176/airworthiness-directives-mcdonnell-douglas-model-717-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A03B1E278626097F86256A5C005DD54F.0001
- Page: https://openairdocs.org/proposed/2001-NM-47-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain McDonnell Douglas Model 717 series airplanes. This proposal would require 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 proposal also would require replacement of the rod ends of the spoiler hold-down actuators with new rod ends, and reidentification of the spoiler hold-down actuators, which would constitute 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 addressthe identified unsafe condition.

## Notices in this docket

- May 15, 2001: Notice of proposed rulemaking (NPRM). (first notice), FR document 01-12176, comments due Jun 29, 2001 (https://www.federalregister.gov/documents/2001/05/15/01-12176/airworthiness-directives-mcdonnell-douglas-model-717-series-airplanes)

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