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Aircraft Certification Service (AIR)
Draft Advisory Circulars (ACs) Open for Comment

Document Title: Proposed AC 25.853-1A, Flammability Requirements for Transport Category Airplanes
Summary: This advisory circular (AC) provides guidance for an acceptable means of showing compliance with the requirements of title 14, Code of Federal Regulations (14 CFR) 25.853, Interior parts and components fire protection. Section 25.853 requires materials, parts, and components used in transport category airplanes to meet performance standards specific to the type of fire threat to which they will be exposed.

This proposed AC supports the "Interior Parts and Components Fire Protection for Transport Category Airplanes" NPRM. (See Docket No. FAA-2019-0491 on regulations.gov.)
Documents for Download: Draft Document
Draft Document Comment Grid
Reference: 14 CFR 25.853 and appendix F to part 25
Comments Due: October 7, 2019
How to Comment: Email comments to:
Maria.G.Delgado@faa.gov

Deliver comments by mail or hand to:
Federal Aviation Administration
Aircraft Certification Service
Policy and Innovation Division
Transport Standards Branch, AIR-670
2200 S 216th St
Des Moines, WA 98198

Fax comments to:
206-231-3178
Document Title: Proposed AC 25.853-2X, Flammability Requirements for Aircraft Seat Cushions
Summary: This advisory circular (AC) provides guidance for an acceptable means of showing compliance with the flammability requirements for aircraft seat cushions in paragraph (d)(3) of title 14, Code of Federal Regulations (14 CFR) 25.853, Interior parts and components fire protection. This AC also defines certain terms used in part 25, in the context of these requirements. Previously, the FAA provided guidance on this subject in AC 25.853-1. The FAA has updated that guidance and moved it into this new, proposed AC.

This proposed AC supports the "Interior Parts and Components Fire Protection for Transport Category Airplanes" NPRM. (See Docket No. FAA-2019-0491 on regulations.gov.)
Documents for Download: Draft Document
Draft Document Comment Grid
Reference: 14 CFR 25.853 and appendix F to part 25
Comments Due: October 7, 2019
How to Comment: Email comments to:
Maria.G.Delgado@faa.gov

Deliver comments by mail or hand to:
Federal Aviation Administration
Aircraft Certification Service
Policy and Innovation Division
Transport Standards Branch, AIR-670
2200 S 216th St
Des Moines, WA 98198

Fax comments to:
206-231-3178
Document Title: Proposed AC 25.853-3X, Flammability Testing Requirements for Commonly Constructed Parts, Construction Details, and Materials Used on Transport Category Airplanes
Summary: This advisory circular (AC) provides guidance for an acceptable means of showing compliance with the requirements for flammability testing of commonly constructed parts, construction details, and materials used on transport category airplanes, required by title 14, Code of Federal Regulations (14 CFR) part 25. The methods of compliance (MOCs) described in this AC apply when Bunsen burner or heat release testing is used for flammability.

This proposed AC supports the "Interior Parts and Components Fire Protection for Transport Category Airplanes" NPRM. (See Docket No. FAA-2019-0491 on regulations.gov.)
Documents for Download: Draft Document
Draft Document Comment Grid
Reference: 14 CFR 25.853 and appendix F to part 25
Comments Due: October 7, 2019
How to Comment: Email comments to:
Maria.G.Delgado@faa.gov

Deliver comments by mail or hand to:
Federal Aviation Administration
Aircraft Certification Service
Policy and Innovation Division
Transport Standards Branch, AIR-670
2200 S 216th St
Des Moines, WA 98198

Fax comments to:
206-231-3178
Document Title: Proposed AC 25.853-4X, Vertical Bunsen Burner Tests
Summary: This advisory circular (AC) provides guidance for an acceptable means of utilizing a vertical Bunsen burner test to show compliance with paragraphs (c)(1)(i) and (d)(1) of title 14, Code of Federal Regulations (14 CFR) 25.853, Interior parts and components fire protection. Section 25.853(c)(1)(i) requires that certain parts be self-extinguishing and resistant to a small flame. Section 25.853(d)(1) requires that certain cargo compartment liners resist penetration by a small flame.

This proposed AC supports the "Interior Parts and Components Fire Protection for Transport Category Airplanes" NPRM. (See Docket No. FAA-2019-0491 on regulations.gov.)
Documents for Download: Draft Document
Draft Document Comment Grid
Reference: 14 CFR 25.853 and appendix F to part 25
Comments Due: October 7, 2019
How to Comment: Email comments to:
Maria.G.Delgado@faa.gov

Deliver comments by mail or hand to:
Federal Aviation Administration
Aircraft Certification Service
Policy and Innovation Division
Transport Standards Branch, AIR-670
2200 S 216th St
Des Moines, WA 98198

Fax comments to:
206-231-3178
Document Title: Proposed AC 25.853-5X, Flammability Requirements for Materials in Inaccessible Areas of Transport Category Airplanes
Summary: This advisory circular (AC) provides guidance for an acceptable means of showing compliance with the flammability and fire resistance requirements for materials in inaccessible areas during flight, required by title 14, Code of Federal Regulations (14 CFR) 25.853(c)(2)(i), Interior parts and components fire protection, and 25.1713(c), Fire Protection: EWIS, at amendment 25-XXX.

This proposed AC supports the "Interior Parts and Components Fire Protection for Transport Category Airplanes" NPRM. (See Docket No. FAA-2019-0491 on regulations.gov.)
Documents for Download: Draft Document
Draft Document Comment Grid
Reference: 14 CFR 25.853, 25.1713, and appendix F to part 25
Comments Due: October 7, 2019
How to Comment: Email comments to:
Maria.G.Delgado@faa.gov

Deliver comments by mail or hand to:
Federal Aviation Administration
Aircraft Certification Service
Policy and Innovation Division
Transport Standards Branch, AIR-670
2200 S 216th St
Des Moines, WA 98198

Fax comments to:
206-231-3178
Document Title: Proposed AC 25.853-6X, Flammability Requirements of Escape System Materials for Transport Category Airplanes
Summary: This advisory circular provides guidance for an acceptable means of showing compliance with the requirements of paragraph (d)(5) of title 14, Code of Federal Regulations (14 CFR) 25.853, Interior parts and components fire protection, at amendment 25-XXX. Section 25.853(d)(5) requires escape systems used in transport category airplanes to continue to function when exposed to the effects of radiant heat from a post-crash fuel fire. The guidance in this AC is equally available for prior amendments, with respect to the escape system radiant heat test.

This proposed AC supports the "Interior Parts and Components Fire Protection for Transport Category Airplanes" NPRM. (See Docket No. FAA-2019-0491 on regulations.gov.)
Documents for Download: Draft Document
Draft Document Comment Grid
Reference: 14 CFR 25.853 and appendix F to part 25
Comments Due: October 7, 2019
How to Comment: Email comments to:
Maria.G.Delgado@faa.gov

Deliver comments by mail or hand to:
Federal Aviation Administration
Aircraft Certification Service
Policy and Innovation Division
Transport Standards Branch, AIR-670
2200 S 216th St
Des Moines, WA 98198

Fax comments to:
206-231-3178
Document Title: Proposed AC 25.855-1X, Flammability Requirements of Cargo Liners for Transport Category Airplanes
Summary: This advisory circular (AC) provides guidance for an acceptable means of showing compliance with the requirements of paragraph (c) of title 14, Code of Federal Regulations (14 CFR) 25.855, Cargo or baggage compartments. Section 25.855(c) requires cargo compartment liners meet the applicable portion of Section 25.853, Interior parts and components fire protection.

This proposed AC supports the "Interior Parts and Components Fire Protection for Transport Category Airplanes" NPRM. (See Docket No. FAA-2019-0491 on regulations.gov.)
Documents for Download: Draft Document
Draft Document Comment Grid
Reference: 14 CFR 25.853, 25.855, and appendix F to part 25
Comments Due: October 7, 2019
How to Comment: Email comments to:
Maria.G.Delgado@faa.gov

Deliver comments by mail or hand to:
Federal Aviation Administration
Aircraft Certification Service
Policy and Innovation Division
Transport Standards Branch, AIR-670
2200 S 216th St
Des Moines, WA 98198

Fax comments to:
206-231-3178
Document Title: Proposed AC 25.856-1A, Thermal/Acoustic Insulation Flame Propagation Test Method Details
Summary: This advisory circular (AC) provides guidance for an acceptable means of utilizing a radiant panel test method to determine the flammability and flame propagation characteristics of thermal/acoustic insulation materials. This is under title 14, Code of Federal Regulations (14 CFR) 25.856, Thermal/Acoustic insulation materials.

This proposed AC supports the "Interior Parts and Components Fire Protection for Transport Category Airplanes" NPRM. (See Docket No. FAA-2019-0491 on regulations.gov.)
Documents for Download: Draft Document
Draft Document Comment Grid
Reference: 14 CFR 25.853, 25.856, and appendix F to part 25
Comments Due: October 7, 2019
How to Comment: Email comments to:
Maria.G.Delgado@faa.gov

Deliver comments by mail or hand to:
Federal Aviation Administration
Aircraft Certification Service
Policy and Innovation Division
Transport Standards Branch, AIR-670
2200 S 216th St
Des Moines, WA 98198

Fax comments to:
206-231-3178
Document Title: Proposed AC 25.856-2B, Fuselage Burnthrough Protection
Summary: This advisory circular (AC) provides guidance for the test method to determine burnthrough resistance of thermal/acoustic insulation materials installed in transport category airplanes. This guidance applies to airplanes seeking to comply with paragraph (b) of title 14, Code of Federal Regulations (14 CFR) 25.856, Thermal/Acoustic insulation materials, at amendment 25-XXX.

This proposed AC supports the "Interior Parts and Components Fire Protection for Transport Category Airplanes" NPRM. (See Docket No. FAA-2019-0491 on regulations.gov.)
Documents for Download: Draft Document
Draft Document Comment Grid
Reference: 14 CFR 25.853, 25.856, and appendix F to part 25
Comments Due: October 7, 2019
How to Comment: Email comments to:
Maria.G.Delgado@faa.gov

Deliver comments by mail or hand to:
Federal Aviation Administration
Aircraft Certification Service
Policy and Innovation Division
Transport Standards Branch, AIR-670
2200 S 216th St
Des Moines, WA 98198

Fax comments to:
206-231-3178

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