# Proposed AD 2001-NM-08-AD: Aerospatiale Model ATR42-200, -300, and -320 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2001-15-07
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 25, 2001, 66 FR 20768
- Comments due: May 25, 2001
- Became: [AD 2001-15-07](https://openairdocs.org/ad/2001-15-07)
- Docket: 2001-NM-08-AD
- FR document: 01-10178
- Official PDF: https://openairdocs.org/files/sha256/b4/27/b427830a6978504e040d8e12427b7ff4b0ea067c0e507a47a4cadc4c39f6e52b (from https://www.govinfo.gov/content/pkg/FR-2001-04-25/pdf/01-10178.pdf)
- Federal Register: https://www.federalregister.gov/documents/2001/04/25/01-10178/airworthiness-directives-aerospatiale-model-atr42-200--300-and--320-series-airplanes
- Page: https://openairdocs.org/proposed/2001-NM-08-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Aerospatiale Model ATR42- 200, -300, and -320 series airplanes. This proposal would require modifying the wiring of the starting rotary switch. This action is necessary to prevent the loss of electrical power supply of the DC emergency and standby buses, which could result in the loss of some electrical loads and the consequent display of erroneous information to the flight crew. This action is intended to address the identified unsafe condition.

## Notices in this docket

- Apr 25, 2001: Notice of proposed rulemaking (NPRM). (first notice), FR document 01-10178, comments due May 25, 2001 (https://www.federalregister.gov/documents/2001/04/25/01-10178/airworthiness-directives-aerospatiale-model-atr42-200--300-and--320-series-airplanes)

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