This notice announces a new time for reply period in which certain
individuals who receive a Letter of Investigation (LOI) may provide a response. With immediate
effect, an applicable individual who is provided an LOI is entitled to 30 days after receipt to
provide comments on the incident to the investigating office. This notice contains guidance that
is pertinent to Title 49 of the United States Code (49 U.S.C.) Chapter 447.

This notice provides updates to the list of documents that have
published, and will publish, in support of Title 14 of the Code of Federal Regulations (14 CFR)
Part 194, Special Federal Aviation Regulation No. 120—Powered-Lift: Pilot Certification and
Training; Operations Requirements.

This notice announces the publication of Title 14 of the Code of
Federal Regulations (14 CFR) Part 3 Subpart C, U.S. Agents for Service on Individuals With
Foreign Addresses Who Hold or Apply for Certain Certificates, Ratings, or Authorizations.

This notice provides guidance to aviation safety inspectors (ASI)
with oversight responsibilities of Title 14 of the Code of Federal Regulations (14 CFR) part 141
schools and discusses the requirements for conducting ramp inspections of school aircraft.

On November 20, 2023, the Federal Aviation Administration
(FAA) issued Notice N 8110.118, Submittal and Disclosure of Safety Critical Information by
Applicants for Transport Category Airplane Type Certificates to supplement FAA Order
8110.4C, Type Certification and provide FAA interim policy regarding some of the requirements
of Section 105(a) of The Aircraft Certification, Safety, and Accountability Act, Pub. L. 116-260
(the Act). Section 105(a) of the Act established paragraph 44704(e) of Title 49, United States
Code (49 U.S.C.). The Act mandates that the Administrator require the submittal and disclosure
of safety critical information by applicants for, or holders of, new or amended, but not
supplemental, type certificates (TC) for transport category airplanes covered under title 14, Code
of Federal Regulations (14 CFR) part 25. Section 105(a) also mandates the FAA to establish
multiple milestones throughout the certification process at which a proposed airplane system will
be assessed to determine whether any change to such system during the certification process is
such that the system should be considered novel or unusual by the Administrator.
This Notice extends the interim policy in Notice N 8110.118, and updates references to
specific 14 CFR part 25 sections based on a final rule issued by the FAA (89 FR 68706) on
August 27, 2024 to amend certain airworthiness regulations to standardize the criteria for
conducting safety assessments for systems, including flight controls and powerplants, installed
on transport category airplanes. The FAA has initiated rulemaking proposed to mandate, after
notice and an opportunity for the public to comment, Section 105(a)’s requirements for transport
category airplane new and amended TC applicants and holders. 1 However, this Notice addresses
methods of clearly identifying, as “safety critical,” certain information that already is, and can
continue to be, provided by applicants during the application process for a new or amended TC
project for a transport category airplane. This Notice also discusses usage of milestones
throughout the project

This AC describes a standardized
procedure for requesting approval of technical data associated with major repairs/major
alterations. This AC also provides information that can help determine if a proposed
repair/alteration requires approved data, guidance, and standardized procedures for obtaining
field approval (or approval by other means) of data, and instructions for completing the field
approval checklist.