# Proposed AD 2003-NM-33-AD: Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-120, -120ER, -120FC, -120QC, and -120RT Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2008-15-01
- Products: Embraer
- Product type: Aircraft
- Action: Supplemental notice of proposed rulemaking; reopening of comment period.
- Published: February 8, 2008, 73 FR 7494
- Comments due: March 4, 2008
- Became: [AD 2008-15-01](https://openairdocs.org/ad/2008-15-01)
- Docket: 2003-NM-33-AD
- FR document: E8-2356
- Official PDF: https://openairdocs.org/files/sha256/ae/c8/aec8dd3aaa62a8f65a9c0513c9f1e75565e54e57dfa4aebbd99ff860df7cb90d (from https://www.govinfo.gov/content/pkg/FR-2008-02-08/pdf/E8-2356.pdf)
- Federal Register: https://www.federalregister.gov/documents/2008/02/08/E8-2356/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-emb-120--120er--120fc
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/612F271E9805B527862573E9005668B2.0001
- Page: https://openairdocs.org/proposed/2003-NM-33-AD

## Summary

This document revises an earlier proposed airworthiness directive (AD), applicable to all EMBRAER Model EMB-120 series airplanes, that would have required revising the airplane flight manual to include operational limitations for use of the autopilot, and installing two placards that advise the flight crew to check the pitch trim before descent. This new action would retain the original requirements, but with revised placard language. This new action would also require modifying the elevator trim system, which would terminate the requirements of the AD. The actions specified by this new proposed AD are intended to prevent pitch trim upsets if the pitch trim actuators jam or freeze, which could result in reduced controllability of the airplane. This action is intended to address the identified unsafe condition.

## Notices in this docket

- Apr 1, 2003: Notice of proposed rulemaking (NPRM). (first notice), FR document 03-7750, comments due May 1, 2003 (https://www.federalregister.gov/documents/2003/04/01/03-7750/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-emb-120-series-airplanes)
- Feb 8, 2008: Supplemental notice of proposed rulemaking; reopening of comment period., FR document E8-2356, comments due Mar 4, 2008 (https://www.federalregister.gov/documents/2008/02/08/E8-2356/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-emb-120--120er--120fc)

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