# Proposed AD 2002-NE-22-AD: Titeflex Corporation

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2003-23-05
- Products: Titeflex
- Product type: Appliance
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 13, 2003, 68 FR 11999
- Comments due: May 12, 2003
- Became: [AD 2003-23-05](https://openairdocs.org/ad/2003-23-05)
- Docket: 2002-NE-22-AD
- FR document: 03-6043
- Official PDF: https://openairdocs.org/files/sha256/b3/ca/b3ca1dd6fba03caadf788cf608e3f92a177920f1cd2e29d1f271a8e401578b84 (from https://www.govinfo.gov/content/pkg/FR-2003-03-13/pdf/03-6043.pdf)
- Federal Register: https://www.federalregister.gov/documents/2003/03/13/03-6043/airworthiness-directives-titeflex-corporation
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/551FBB6FC721B21986256CE800543307.0001
- Page: https://openairdocs.org/proposed/2002-NE-22-AD

## Summary

The Federal Aviation Administration (FAA) proposes to adopt a new airworthiness directive (AD) that is applicable to certain Titeflex Corporation hoses installed on Boeing 737-300, -400, -500, -600, -700, -700C, -800, -900, 747-400, 757-200, -300, 767-200, -300, and -300F airplanes. This proposal would require within 24 months after the effective date of the AD, inspection of certain Titeflex Corporation hoses for proper date and paint code, replacement if necessary, and if necessary, inspection for proper heat treatment of aluminum B-nuts. This proposal is prompted by certain Titeflex Corporation hoses discovered with incorrect heat treatment of B-nuts. The actions specified by the proposed AD are intended to prevent fire extinguishing system and fuel system hose failure due to improperly heat treated aluminum B-nuts.

## Notices in this docket

- Mar 13, 2003: Notice of proposed rulemaking (NPRM). (first notice), FR document 03-6043, comments due May 12, 2003 (https://www.federalregister.gov/documents/2003/03/13/03-6043/airworthiness-directives-titeflex-corporation)

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