| Document Title: | AC 25-X, Takeoff Performance Data for Operations on Contaminated Runways |
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| Summary: | This advisory circular provides guidance and standardized methods that data providers, such as type certificate holders, supplemental type certificate holders, applicants, and airplane operators, can use when developing takeoff performance data for transport category airplanes for operations on contaminated runways. This AC also promotes the use of consistent terminology for runway surface conditions used among data providers and FAA personnel. |
| Documents for Download: | Draft Document (MS Word)
Draft Document Comment Grid (MS Word) |
| Reference: | 14 CFR 25.101, 25.105, 25.107, 25.109, 25.111, 25.113, 25.115 |
| Comments Due: | March 6, 2015 |
| How to Comment: | Email comments to:
Maria.G.Delgado@faa.gov Deliver comments by mail or hand to: Federal Aviation Administration Transport Airplane Directorate Standardization Branch, ANM-113 1601 Lind Ave SW Renton, WA 98057 Fax comments to: 425-227-1232 |
| Document Title: | AC 25-X, Landing Performance Data for Time-of-Arrival Landing Performance Assessments |
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| Summary: | This AC provides guidance and standardized methods that data providers, such as type certificate holders, supplemental type certificate holders, applicants, and airplane operators, can use when developing landing performance data for time-of-arrival landing performance assessments for transport category airplanes. This AC also promotes the use of consistent terminology for runway surface conditions used among data providers and FAA personnel. |
| Documents for Download: | Draft Document (MS Word)
Draft Document Comment Grid (MS Word) |
| Reference: | 14 CFR 25.101, 25.125, 25.1587, 91.1037, 121.195, 135.385 |
| Comments Due: | March 6, 2015 |
| How to Comment: | Email comments to:
Maria.G.Delgado@faa.gov Deliver comments by mail or hand to: Federal Aviation Administration Transport Airplane Directorate Standardization Branch, ANM-113 1601 Lind Ave SW Renton, WA 98057 Fax comments to: 425-227-1232 |
| Document Title: | AC 20-18B, Qualification Testing of Turbojet and Turbofan Engine Thrust Reversers |
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| Summary: | This advisory circular (AC) provides guidance for demonstrating compliance with Title 14 of the Code of Federal Regulations (14 CFR) 33.97, Thrust reversers, and for certifying a thrust reverser for use with a turbojet or turbofan engine. |
| Documents for Download: | Draft Document (MS Word)
Draft Document Comment Grid (MS Word) Summary of Revisions (MS Word) |
| Reference: | 14 CFR 33.97 |
| Comments Due: | March 13, 2015 |
| How to Comment: | Email comments to:
Alan.strom@faa.gov Deliver comments by mail or hand to: Federal Aviation Administration Engine and Propeller Directorate Standards Staff, ANE-111 12 New England Executive Park Burlington, MA 01803 Fax comments to: 781-238-7199 |
| Document Title: | AC 25.954-X Transport Airplane Fuel System Lightning Protection |
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| Summary: | This proposed AC provides information and guidance on how to show compliance with the airworthiness regulations for transport category airplanes regarding lightning protection of fuel tanks and systems. These lightning protection requirements apply to normal conditions and possible failures of fuel tank structure and systems that could lead to fuel tank explosions. This AC also provides guidance on how to meet maintenance requirements and how to develop critical design configuration control limitations and instructions for continued airworthiness related to lightning protection features of the airplane fuel system. |
| Documents for Download: | Draft Document (MS Word)
Draft Document Comment Grid (MS Word) |
| Reference: | 14 CFR 25.954 |
| Comments Due: | March 18, 2015 |
| How to Comment: | Email comments to:
theresa.j.white@faa.gov Deliver comments by mail or hand to: Federal Aviation Administration Transport Airplane Directorate Transport Standards Staff, ANM-113 1601 Lind Ave. SW Renton, WA 98057 Fax comments to: 425-227-1232 |
| Document Title: | AC 25.981-1X Fuel Tank Ignition Source Prevention Guidelines |
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| Summary: | This revised AC provides guidance for demonstrating compliance with the certification requirements for prevention of ignition sources, except lightning, which is addressed in AC 25.954-X, within the fuel tanks of transport category airplanes. This AC also identifies the need for prevention of failure conditions by which ignition will be created from sources other than lightning and describes a method using circuit protective devices such as arc fault circuit breakers (AFCB) or ground fault interrupter (GFI) to provide fail-safe features that have been approved as demonstrating compliance with 14 CFR 25.981. This guidance is applicable to transport category airplanes for which a new, amended, or supplemental type certificate is requested. |
| Documents for Download: | Draft Document (MS Word)
Draft Document Comment Grid (MS Word) |
| Reference: | 14 CFR 25.981 |
| Comments Due: | March 18, 2015 |
| How to Comment: | Email comments to: theresa.j.white@faa.gov Deliver comments by mail or hand to: Federal Aviation Administration Transport Airplane Directorate Transport Standards Staff, ANM-113 1601 Lind Ave. SW Renton, WA 98057 Fax comments to: 425-227-1232 |
| Document Title: | Protection of Aircraft Fuel Systems Against Vapor Ignition Caused by Lightning |
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| Summary: | This advisory circular (AC) provides applicants with guidance for obtaining Federal Aviation Administration (FAA) approval of your compliance pursuant to Title 14, Code of Federal Regulations (14 CFR) 23.954, 27.954, and 29.954, Fuel System Lightning Protection. This AC recommends how to protect the aircraft���s fuel system from lightning strikes that may ignite fuel vapors. |
| Documents for Download: | Draft Document (PDF)
Draft Document Comment Grid (MS Excel) |
| Reference: | |
| Comments Due: | March 18, 2015 |
| How to Comment: | Email comments to:
Lee.Nguyen@faa.gov Deliver comments by mail or hand to: Federal Aviation Administration Aircraft Certification Services Systems and Equipment Standards Branch AIR-130 470 L'Enfant Plaza, SW, Suite 4102 Washington, DC 20024 Fax comments to: 202-267-8589 |
| Document Title: | Airborne Software Assurance Topics |
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| Summary: | This AC provides guidance to help you comply with the software aspects of the applicable airworthiness regulations and is in addition to the assurance processes described in DO-178C and DO-178B. Most of the guidance contained in this AC has been extracted from FAA Order 8110.49 change 1, Software Approval Guidelines, and from issue papers that have been applied to specific type certification programs. If you are using DO-178C or DO-178B (hereafter referred to as DO-178C/B) for software assurance, you should determine which chapters apply to your project, and use the guidance contained therein. |
| Documents for Download: | Draft Document (PDF)
Draft Document Comment Grid (MS Excel) |
| Reference: | |
| Comments Due: | April 18, 2015 |
| How to Comment: | Email comments to:
richard.spencer@faa.gov Deliver comments by mail or hand to: Federal Aviation Administration Design, Manufacturing, & Airworthiness Division Aircraft Certification Service System and Equipment Standards Branch AIR-130 470 L'Enfant Plaza, SW, Ste. 4102 Washington, DC 20024 Fax comments to: 202-267-8589 |
