# Proposed AD 99-NM-108-AD: McDonnell Douglas Model DC-10 and MD-11 Series Airplanes, and KC-10A (Military) Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2001-05-10
- Action: Notice of proposed rulemaking (NPRM).
- Published: November 30, 1999, 64 FR 66816
- Comments due: January 14, 2000
- Became: [AD 2001-05-10](https://openairdocs.org/ad/2001-05-10)
- Docket: 99-NM-108-AD
- FR document: 99-31072
- Official PDF: https://openairdocs.org/files/sha256/da/ef/daefefee9bf57cf3e9fd747feb67463bfb4a59938d95ff65b18aa21b0fd983d9 (from https://www.govinfo.gov/content/pkg/FR-1999-11-30/pdf/99-31072.pdf)
- Federal Register: https://www.federalregister.gov/documents/1999/11/30/99-31072/airworthiness-directives-mcdonnell-douglas-model-dc-10-and-md-11-series-airplanes-and-kc-10a
- Page: https://openairdocs.org/proposed/99-NM-108-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to all McDonnell Douglas Model DC-10 and MD-11 series airplanes, and KC-10A (military) airplanes. This proposal would require installation of thrust reverser interlocks on certain airplanes, inspections of the thrust reverser systems to detect discrepancies on certain other airplanes, and corrective actions, if necessary. This proposal is prompted by a determination that the current thrust reverser systems do not adequately preclude unwanted deployment of a thrust reverser. The actions specified by the proposed AD are intended to prevent unwanted deployment of a thrust reverser, which could result in reduced controllability of the airplane.

## Notices in this docket

- Nov 30, 1999: Notice of proposed rulemaking (NPRM). (first notice), FR document 99-31072, comments due Jan 14, 2000 (https://www.federalregister.gov/documents/1999/11/30/99-31072/airworthiness-directives-mcdonnell-douglas-model-dc-10-and-md-11-series-airplanes-and-kc-10a)

---
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.