This notice announces actions for principal inspector (PI) review of aircraft documentation for 5G C-Band radio altimeter tolerance for foreign air carriers operating under Title 14 of the Code of Federal Regulations (14 CFR) part 129. It also announces revised Federal Aviation Administration (FAA) Order 8900.1, Flight Standards Information Management System, guidance associated with the change.

This advisory circular (AC) provides information to airport operators on airport self-inspection programs and identifies the items included in these programs.

This order prescribes procedures and phraseology for use by personnel providing flight services.
Specialists are required to be familiar with the provisions of this order that pertain to their
operational responsibilities and to exercise judgment if they encounter situations that are not
covered.