# Proposed AD FAA-2004-19568: Dornier Model 328-300 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2005-05-11
- Products: Fairchild Dornier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: November 12, 2004, 69 FR 65391
- Comments due: December 13, 2004
- Became: [AD 2005-05-11](https://openairdocs.org/ad/2005-05-11)
- Docket: FAA-2004-19568 (https://www.regulations.gov/docket/FAA-2004-19568, where comments are filed)
- Project: 2004-NM-112-AD
- FR document: 04-25192
- Official PDF: https://openairdocs.org/files/sha256/bb/5f/bb5fc055ce6c194170e112e4cac29e24704412a41098f230d09682f581eff7a2 (from https://www.govinfo.gov/content/pkg/FR-2004-11-12/pdf/04-25192.pdf)
- Federal Register: https://www.federalregister.gov/documents/2004/11/12/04-25192/airworthiness-directives-dornier-model-328-300-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9C9D39145E309EF086256F4A004E4709.0001
- Page: https://openairdocs.org/proposed/FAA-2004-19568

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Dornier Model 328-300 series airplanes. This proposed AD would require repetitive inspections for discrepancies of the heat pack rotor assembly and rotor drive clips of the brake unit of the main landing gear (MLG), and replacing the assembly if any discrepancy is found. This proposed AD is prompted by reports of cracking and breakage of the heat pack rotor assemblies. We are proposing this AD to find and fix discrepancies of the heat pack rotor assembly of the brake unit of the MLG and consequent loss of braking capability, which could result in the airplane overrunning the runway during take-off or landing.

## Notices in this docket

- Nov 12, 2004: Notice of proposed rulemaking (NPRM). (first notice), FR document 04-25192, comments due Dec 13, 2004 (https://www.federalregister.gov/documents/2004/11/12/04-25192/airworthiness-directives-dornier-model-328-300-series-airplanes)

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