# Proposed AD 2000-NM-379-AD: Aerospatiale Model ATR42-200, -300, -320, and -500 Series Airplanes and Model ATR72 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2001-16-10
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 12, 2001, 66 FR 18882
- Comments due: May 14, 2001
- Became: [AD 2001-16-10](https://openairdocs.org/ad/2001-16-10)
- Docket: 2000-NM-379-AD
- FR document: 01-9076
- Official PDF: https://openairdocs.org/files/sha256/30/2b/302b1e1f27be4e54c07fc63e2499d34ff36c03a22ef716d9b8cf7c68db4954f7 (from https://www.govinfo.gov/content/pkg/FR-2001-04-12/pdf/01-9076.pdf)
- Federal Register: https://www.federalregister.gov/documents/2001/04/12/01-9076/airworthiness-directives-aerospatiale-model-atr42-200--300--320-and--500-series-airplanes-and-model
- Page: https://openairdocs.org/proposed/2000-NM-379-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to all Aerospatiale Model ATR42-200, -300, -320, and -500 series airplanes and all ATR72 series airplanes. This proposal would require revision of the Airplane Flight Manual (AFM) to modify procedures for takeoff when Type II or IV de-icing fluids have been used. This proposal is prompted by reports that use of these de-icing fluids is associated with an increase in the pitch forces necessary to rotate the airplane during takeoff and with other changes in performance. These changes could result in reduced controllability of the airplane. The action specified in this AD is intended to ensure that the flight crew is advised of the potential effects of Type II or IV de-icing fluids on the airplane's performance during takeoff and of the procedures necessary to address these effects.

## Notices in this docket

- Apr 12, 2001: Notice of proposed rulemaking (NPRM). (first notice), FR document 01-9076, comments due May 14, 2001 (https://www.federalregister.gov/documents/2001/04/12/01-9076/airworthiness-directives-aerospatiale-model-atr42-200--300--320-and--500-series-airplanes-and-model)

---
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.