This AC calls attention to
regulatory requirements, recommended operations, and communications procedures for
operating at an airport without a control tower or an airport with a control tower that
operates only part time. It recommends traffic patterns, communications phraseology, and
operational procedures for use by aircraft, lighter-than-air aircraft, gliders, parachutes,
rotorcraft, and ultralight vehicles. This AC stresses safety as the primary objective in
these operations. This AC is related to Title 14 of the Code of Federal Regulations
(14 CFR) part 1, § 1.1 (traffic pattern), and part 91, § 91.13 (Careless or Reckless
Operation), § 91.113 (Right-of-Way Rules: Except Water Operations), and § 91.126
(Operating On or In the Vicinity of an Airport in Class G Airspace). The contents of this
document do not have the force and effect of law and are not meant to bind the public in
any way, and the document is intended only to provide information to the public
regarding existing requirements under the law or agency policies.

This technical standard order (TSO) is for manufacturers applying for a TSO
authorization (TSOA) or letter of TSO design approval (LODA). In it, we (the Federal Aviation
Administration, (FAA)) tell you what minimum performance standards (MPS) your twin seaplane
floats must meet for approval and identification with the applicable TSO marking.

This policy statement addresses Federal Aviation Administration (FAA) implementation of
section 105(c) of the Aircraft Certification, Safety, and Accountability Act, Pub. L. 116-260 (the
Act). Section 105(c) requires the FAA to revise its procedures in order to require applicants for
amendments to type certificates (TCs) for transport category aircraft to disclose, in a single
document at the beginning of the certification process, all new systems and intended changes to
existing systems known to the applicant.

This order establishes the Federal Aviation Administration’s
(FAA) international governance structure.

This AC provides information
and guidance for a Title 14 of the Code of Federal Regulations (14 CFR) part 135,
§ 135.419, Approved Aircraft Inspection Program (AAIP). This AC is not mandatory and
does not constitute a regulation. This AC describes an acceptable means, but not the only
means, for a certificate holder (CH) to develop and obtain approval of an AAIP. The
contents of this document do not have the force and effect of law and are not meant to
bind the public in any way, and the document is intended only to provide information to
the public regarding existing requirements under the law or agency policies.