Document Title: Turbine Engine Continued Rotation And Rotor Locking
Summary: This advisory circular provides guidance for demonstrating compliance with the continued rotation and rotor locking requirements of Title 14, Code of Federal Regulations (14 CFR) part 33. The safety objective of § 33.74 is to ensure that an engine that continues to rotate after shutdown will not create a hazardous condition to the aircraft. This objective imposes a design requirement that basic continued rotation failure conditions or events do not develop into a hazardous event over a sustained continued rotation period.
Documents for Download: Draft Document (MS Word)
Summary of Revisions Report (PDF)
Draft Document Comment Grid (MS Word)
Reference: 14 CFR, Part 33.74 and 33.92
Comments Due: September 12, 2014
How to Comment: Email comments to:
carlos.fernandes@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:
781-328-7199
Document Title: AC 20-166A, ISSUE PAPER PROCESS
Summary: This advisory circular (AC) provides information on the use of issue papers (IP) and gives guidance on their role in the IP process to applicants seeking approval for a type certificate (TC), an amended TC, a supplemental type certificate (STC), an amended STC, type design changes, approval of articles (14 CFR 21.8(d)), Technical Standard Order Authorization (TSOA) approvals, or parts manufacturer approval (PMA). It also provides guidance for use of IPs in type validation programs. This document provides guidance to applicants relative to FAA Order 8110.112A, Standardized Procedures for Usage of Issue Papers and Development of Equivalent Level of Safety Memorandums.
Documents for Download: Draft Document (PDF)
Draft Document Comment Grid (MS Word)
Reference:
Comments Due: September 15, 2014
How to Comment: Email comments to:
Maddie.miguel@faa.gov

Deliver comments by mail or hand to:
Federal Aviation Administration
Design, Manufacturing, and Airworthiness Division, AIR-100
950 L'Enfant Plaza, SW, 5th Floor
Washington DC 20024

Fax comments to:
202-267-1813
Document Title: AC 25.851-X Built-in Fire Extinguisher/Fire Suppression Systems
Summary: This proposed AC provides guidance concerning compliance with the airworthiness standards for transport category airplanes pertaining to Class C and Class F cargo compartments that incorporate built-in fire extinguisher/suppression systems.
Documents for Download: Draft Document (MS Word)
Reference: 14 CFR 25.851
Comments Due: October 6, 2014
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 25.857-X Class B and F Cargo Compartments
Summary: This AC provides guidance concerning compliance with the airworthiness standards for transport category airplanes pertaining to Class B and Class F cargo compartments, both of which must be accessible in flight to crewmembers (i.e., located on the main deck). 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)
Reference: 14 CFR 25.857
Comments Due: October 6, 2014
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 25.975-X Fuel Vent Fire Protection
Summary: This proposed advisory circular (AC) provides information and guidance concerning compliance with Federal Aviation Administration (FAA) requirements in Title 14, Code of Regulations (14 CFR) 25.975 and related regulations for preventing fuel tank explosions caused by ignition of vapors outside the fuel tank vents.
Documents for Download: Draft Document (MS Word)
Draft Document Comment Grid (MS Word)
Reference: NPRM Publication Date: 9/15/2014; Notice No. 14-07; Docket No.: FAA-2014-0500.
Comments Due: November 13, 2014
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
Standardization Branch, ANM-113
1601 Lind Avenue SW
Renton, WA 98057-3356

Fax comments to:
425-227-1232