Document Title: Bonded Repair Size Limits
Summary: This Policy Statement includes harmonised content, as agreed with EASA, and has been released for comment in parallel with the equivalent EASA document. Although the policy sections and supporting content are similar in intent, some differences exist in the supporting content throughout the documents due to differences between FAA and EASA document formats and processes.

This policy reviews the regulatory basis and establishes the guidance in setting size limits for bonded repair to critical composite (monolithic and sandwich structures) and metallic structure. Bonded repair of critical structure must first be constrained to the sizes allowed by substantiating design data. This policy informs Aircraft Certification Office (ACO) engineers and designees that due to inspection limitations, bonded repair must be further limited to a maximum size whereby limit load residual strength can be demonstrated with a complete or partial failure of the bond within the repair or base structure arresting design features. This policy is not intended for minor repairs.

Documents for Download: Draft Document (MS Word)
Reference:
Comments Due: October 10, 2014
How to Comment: Email comments to:
lester.cheng@faa.gov

Deliver comments by mail or hand to:
Federal Aviation Administration
Aircraft Certification Service
Systems and Equipment Standards Branch
470 L'Enfant Plaza, SW, Ste. 4102
Washington, DC 20024

Fax comments to:
316-946-4107
Document Title: Clarification for 14 CFR Part 33.83 Vibration Test
Summary: This policy statement clarifies section 33.83(a) to advise that the applicant should perform the surveys by doing an engine test.
Documents for Download: Draft Document (MS Word)
Reference: 14 CFR part 33.83 Vibration Test
Comments Due: November 21, 2014
How to Comment: Email comments to:
dorina.mihail@faa.gov

Deliver comments by mail or hand to:
Federal Aviation Administration
Engine and Propeller Directorate
Standards Staff, ANW-111
12 New England Executive Park
Burlington, MA 01803

Fax comments to:
781-238-7151