# Proposed AD FAA-2005-20137: Boeing Model 757-200, -200PF, and -300 Series Airplanes, Powered by Pratt & Whitney PW2000 Series Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2005-20-41
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: January 28, 2005, 70 FR 4052
- Comments due: March 14, 2005
- Became: [AD 2005-20-41](https://openairdocs.org/ad/2005-20-41)
- Docket: FAA-2005-20137 (https://www.regulations.gov/docket/FAA-2005-20137, where comments are filed)
- Project: 2004-NM-96-AD
- FR document: 05-1587
- Official PDF: https://openairdocs.org/files/sha256/04/27/0427d95ad3be455e59ff6bd7954d05351a61ba34b0c88c2fcc043305a58c9403 (from https://www.govinfo.gov/content/pkg/FR-2005-01-28/pdf/05-1587.pdf)
- Federal Register: https://www.federalregister.gov/documents/2005/01/28/05-1587/airworthiness-directives-boeing-model-757-200--200pf-and--300-series-airplanes-powered-by-pratt-and
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8630C87847831B4C86256F970054130C.0001
- Page: https://openairdocs.org/proposed/FAA-2005-20137

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 757 series airplanes. This proposed AD would require repetitive inspections for loose or damaged components of the support brackets and associated fasteners for the hydraulic lines located in the nacelle struts, and any related investigative and corrective actions. This proposed AD is prompted by reports of damage and subsequent failure of the support brackets and associated fasteners for the hydraulic lines located internal to the upper fairing cavity of the nacelle struts. We are proposing this AD to prevent flammable fluids from leaking into the interior compartment of the nacelle struts where ignition sources exist, which could result in the ignition of flammable fluids and an uncontained fire.

## Notices in this docket

- Jan 28, 2005: Notice of proposed rulemaking (NPRM). (first notice), FR document 05-1587, comments due Mar 14, 2005 (https://www.federalregister.gov/documents/2005/01/28/05-1587/airworthiness-directives-boeing-model-757-200--200pf-and--300-series-airplanes-powered-by-pratt-and)

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