# Proposed AD 2001-NM-306-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 2003-18-07
- Products: Aerospatiale
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 24, 2003, 68 FR 8555
- Comments due: March 26, 2003
- Became: [AD 2003-18-07](https://openairdocs.org/ad/2003-18-07)
- Docket: 2001-NM-306-AD
- FR document: 03-4243
- Official PDF: https://openairdocs.org/files/sha256/39/b8/39b825a6f297cbbef4e1a7e412ce0fc7f48de0fb1a8b71fde0195dd288ee589a (from https://www.govinfo.gov/content/pkg/FR-2003-02-24/pdf/03-4243.pdf)
- Federal Register: https://www.federalregister.gov/documents/2003/02/24/03-4243/airworthiness-directives-aerospatiale-model-atr42-200--300--320-and--500-series-airplanes-and-model
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0F730EC8BB4E369886256CD700569610.0001
- Page: https://openairdocs.org/proposed/2001-NM-306-AD

## Summary

This document proposes the supersedure of an existing airworthiness directive (AD), applicable to all Aerospatiale Model ATR42-200, -300, -320, and -500 series airplanes; and all Model ATR72 series airplanes; that currently requires revising the Airplane Flight Manual (AFM) to modify procedures for calculating takeoff performance when Type II or IV de-icing or anti-icing fluids have been used. This action would require revising the existing AFM revision to correct the performance values for Model ATR-72 series airplanes and to provide an additional method of compliance for all airplanes. This proposal is prompted by issuance of mandatory continuing airworthiness information by a civil airworthiness authority. The actions specified by the proposed AD are intended to ensure that the flightcrew is advised of the potential effects of Type II or IV de-icing or anti-icing fluids on the airplane's performance during takeoff, and to ensure that the flightcrew is advised of the revisedperformance calculations for takeoff to address these effects.

## Notices in this docket

- Feb 24, 2003: Notice of proposed rulemaking (NPRM). (first notice), FR document 03-4243, comments due Mar 26, 2003 (https://www.federalregister.gov/documents/2003/02/24/03-4243/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.