# Proposed AD 2002-NM-79-AD: Bombardier Model DHC-8-102, -103, -106, -201, -202, -301, -311, and -315 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2004-03-28
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 11, 2003, 68 FR 69057
- Comments due: January 12, 2004
- Became: [AD 2004-03-28](https://openairdocs.org/ad/2004-03-28)
- Docket: 2002-NM-79-AD
- FR document: 03-30677
- Official PDF: https://openairdocs.org/files/sha256/a1/e4/a1e408cbcdde3e3dad516163795261d3f725c44974bed363b403788da573cdc3 (from https://www.govinfo.gov/content/pkg/FR-2003-12-11/pdf/03-30677.pdf)
- Federal Register: https://www.federalregister.gov/documents/2003/12/11/03-30677/airworthiness-directives-bombardier-model-dhc-8-102--103--106--201--202--301--311-and--315-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A8039218B9A23EA486256DF9005C897E.0001
- Page: https://openairdocs.org/proposed/2002-NM-79-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Bombardier Model DHC-8-102, -103, -106, -201, -202, -301, -311, and -315 airplanes. This proposal would require a one-time inspection to determine the serial numbers of the elevator and aileron servos of the drive assemblies of the automatic flight control system, and follow-on corrective actions if necessary. This action is necessary to prevent separation of the screws from the autopilot clutch assembly of the SM-300 servo, which could result in uncommanded engagement of the autopilot servo and consequent reduced controllability of the airplane. This action is intended to address the identified unsafe condition.

## Notices in this docket

- Dec 11, 2003: Notice of proposed rulemaking (NPRM). (first notice), FR document 03-30677, comments due Jan 12, 2004 (https://www.federalregister.gov/documents/2003/12/11/03-30677/airworthiness-directives-bombardier-model-dhc-8-102--103--106--201--202--301--311-and--315-airplanes)

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