# Proposed AD FAA-2005-20836: Boeing Model 727-200 and 727-200F Series Airplanes; 737-200, 737-200C, 737-300, and 737-400 Series Airplanes; 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747SR, and 747SP Series Airplanes; 757-200 and 757-200PF Series Airplanes; and 767-200 and 767-300 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2008-23-09
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM); reopening of comment period.
- Published: November 23, 2005, 70 FR 70749
- Comments due: February 21, 2006
- Became: [AD 2008-23-09](https://openairdocs.org/ad/2008-23-09)
- Docket: FAA-2005-20836 (https://www.regulations.gov/docket/FAA-2005-20836, where comments are filed)
- Project: 2005-NM-028-AD
- FR document: 05-23153
- Official PDF: https://openairdocs.org/files/sha256/46/13/461356f82d66da71ef691f94990030328a30ce2cccf04a51106ae1cb1ec49633 (from https://www.govinfo.gov/content/pkg/FR-2005-11-23/pdf/05-23153.pdf)
- Federal Register: https://www.federalregister.gov/documents/2005/11/23/05-23153/airworthiness-directives-boeing-model-727-200-and-727-200f-series-airplanes-737-200-737-200c-737-300
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/51019AD4AF1C0914862570C200569673.0001
- Page: https://openairdocs.org/proposed/FAA-2005-20836

## Summary

This document announces a reopening of the comment period for the above-referenced NPRM. The NPRM proposed the adoption of a new airworthiness directive (AD) for certain Boeing transport category airplanes. That NPRM invites comments concerning the proposed requirements for replacing any insulation blanket constructed of polyethyleneteraphthalate (PET) film, ORCON Orcofilm[reg] AN-26 (hereafter "AN-26"), with a new insulation blanket. This reopening of the comment period is necessary to provide additional opportunity for public comment on the proposed requirements of that NPRM.

## Notices in this docket

- Apr 4, 2005: Notice of proposed rulemaking (NPRM). (first notice), FR document 05-6674, comments due Jun 3, 2005 (https://www.federalregister.gov/documents/2005/04/04/05-6674/airworthiness-directives-boeing-model-727-200-and-727-200f-series-airplanes-737-200-737-200c-737-300)
- Jun 6, 2005: Notice of proposed rulemaking (NPRM); extension of comment period., FR document 05-11252, comments due Aug 3, 2005 (https://www.federalregister.gov/documents/2005/06/06/05-11252/airworthiness-directives-boeing-model-727-200-and-727-200f-series-airplanes-737-200-737-200c-737-300)
- Nov 23, 2005: Notice of proposed rulemaking (NPRM); reopening of comment period., FR document 05-23153, comments due Feb 21, 2006 (https://www.federalregister.gov/documents/2005/11/23/05-23153/airworthiness-directives-boeing-model-727-200-and-727-200f-series-airplanes-737-200-737-200c-737-300)

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