Availability of Changes to Advisory Circular 27-1B, Certification of Normal Category Rotorcraft, and Advisory Circular 29-2C, Certification of Transport Category Rotorcraft

---
identifier: "/us/fr/05-18152"
source: "fr"
legal_status: "authoritative_unofficial"
title: "Availability of Changes to Advisory Circular 27-1B, Certification of Normal Category Rotorcraft, and Advisory Circular 29-2C, Certification of Transport Category Rotorcraft"
title_number: 0
title_name: "Federal Register"
section_number: "05-18152"
section_name: "Availability of Changes to Advisory Circular 27-1B, Certification of Normal Category Rotorcraft, and Advisory Circular 29-2C, Certification of Transport Category Rotorcraft"
positive_law: false
currency: "2005-09-13"
last_updated: "2005-09-13"
format_version: "1.1.0"
generator: "[email protected]"
agency: "Transportation Department"
document_number: "05-18152"
document_type: "notice"
publication_date: "2005-09-13"
agencies:
  - "Transportation Department"
  - "Federal Aviation Administration"
fr_citation: "70 FR 54099"
fr_volume: 70
fr_action: "Notice of availability of Advisory Circular (AC) changes."
---


#  Availability of Changes to Advisory Circular 27-1B, Certification of Normal Category Rotorcraft, and Advisory Circular 29-2C, Certification of Transport Category Rotorcraft

**AGENCY:**

Federal Aviation Administration (FAA), DOT.

**ACTION:**

Notice of availability of Advisory Circular (AC) changes.

**SUMMARY:**

This notice announces the availability of changes to AC 27-1B, Certification of Normal Category Rotorcraft, and AC 29-2C, Certification of Transport Category Rotorcraft for AC paragraphs 27.351 and AC 29.351B, Yawing Conditions. These AC paragraphs are final and replace the existing AC paragraphs dated 9/30/99. These AC paragraphs will be included in the upcoming Change 2 update.

**FOR FURTHER INFORMATION CONTACT:**

Kathy L. Jones, Regulations Group, FAA, Rotorcraft Directorate, Aircraft Certification Service, Fort Worth, TX 76193-0111; telephone (817) 222-5359; fax (817) 222-5961; e-mail: *http://[email protected].*

**SUPPLEMENTARY INFORMATION:**

This notice announces the availability of AC changes. You can get electronic copies of these changes from the FAA by logging on to *http//www.faa.gov/aircraft/draft_docs/* . If you do not have access to the Internet, you may request a copy by contacting the person named under the caption *FOR FURTHER INFORMATION CONTACT* .

Issued in Fort Worth, Texas, on September 2, 2005.

David A. Downey,

Manager, Rotorcraft Directorate, Aircraft Certification Service.