14 CFR 21, Subpart I - Provisional Airworthiness Certificates

This rule amends the regulations governing noise certification standards for issuing type and airworthiness certificates for a new civil, hybrid airplane-rotorcraft known as the tiltrotor. This noise standard establishes new noise limits and procedures as the basis to ensure consistent aviation noise reduction technology is incorporated in tiltrotors for environmental protection. It provides uniform noise certification standards for tiltrotors certificated in the United States and harmonizes the U.S. regulations with the standards of the International Civil Aviation Organization's (ICAO) Annex 16.

The FAA is revising a final rule published on June 7, 2000 (65 FR 36244). In that final rule, the FAA amended its regulations for the certification of changes to type-certificated products. That amendment was to enhance safety by applying the latest airworthiness standards, to the extent practical, for the certification of significant design changes of aircraft, aircraft engines, and propellers. The existing rule requires the applicant show that the “changed product” complies with applicable standards. This action revises that requirement so that an applicant is required to show compliance only for the change and areas affected by the change. The intended effect of this action is to make the regulation consistent with the FAA's intent and with the certification practice both before and after the adoption of the existing rule.

This notice of policy announces Alaskan fuel hauling as a restricted category special purpose operation under Title 14 of the Code of Federal Regulations (14 CFR) 21.25(b)(7), for aircraft type-certificated under 14 CFR 21.25(a)(1), for operations within the State of Alaska, to provide bulk fuel to isolated individuals or locations in the State of Alaska.

Based upon its assessment of the special light-sport aircraft (SLSA) manufacturing industry, the FAA is issuing this notice of policy to inform the public of its policy for assessing the accuracy of declarations made in Statements of Compliance issued for aircraft intended for airworthiness certification as SLSA and to ensure that SLSA conform to identified consensus standards. Additionally, in response to findings noted in its assessment of the SLSA manufacturing industry, the FAA is reiterating its policy regarding the airworthiness certification of SLSA manufactured outside the United States.

On March 8, 2011, the FAA published an interim final rule, request for comments (Amendment Nos. 21-94, 25-133, 121-354, 129-50; SFAR 111) on security considerations for lavatory oxygen systems (77 FR 12550). The interim final rule addresses a security vulnerability and is needed so the affected airplanes can continue operating until the non-compliance to airworthiness standards and operating rules is resolved. We sought public comment on the interim final rule even though it became effective upon publication. This action responds to the public comments the FAA received.

This rule amends the regulations governing noise certification standards for issuing type and airworthiness certificates for a new civil, hybrid airplane-rotorcraft known as the tiltrotor. This noise standard establishes new noise limits and procedures as the basis to ensure consistent aviation noise reduction technology is incorporated in tiltrotors for environmental protection. It provides uniform noise certification standards for tiltrotors certificated in the United States and harmonizes the U.S. regulations with the standards of the International Civil Aviation Organization's (ICAO) Annex 16.

The FAA is revising a final rule published on June 7, 2000 (65 FR 36244). In that final rule, the FAA amended its regulations for the certification of changes to type-certificated products. That amendment was to enhance safety by applying the latest airworthiness standards, to the extent practical, for the certification of significant design changes of aircraft, aircraft engines, and propellers. The existing rule requires the applicant show that the “changed product” complies with applicable standards. This action revises that requirement so that an applicant is required to show compliance only for the change and areas affected by the change. The intended effect of this action is to make the regulation consistent with the FAA's intent and with the certification practice both before and after the adoption of the existing rule.

This notice of policy announces Alaskan fuel hauling as a restricted category special purpose operation under Title 14 of the Code of Federal Regulations (14 CFR) 21.25(b)(7), for aircraft type-certificated under 14 CFR 21.25(a)(1), for operations within the State of Alaska, to provide bulk fuel to isolated individuals or locations in the State of Alaska.

Based upon its assessment of the special light-sport aircraft (SLSA) manufacturing industry, the FAA is issuing this notice of policy to inform the public of its policy for assessing the accuracy of declarations made in Statements of Compliance issued for aircraft intended for airworthiness certification as SLSA and to ensure that SLSA conform to identified consensus standards. Additionally, in response to findings noted in its assessment of the SLSA manufacturing industry, the FAA is reiterating its policy regarding the airworthiness certification of SLSA manufactured outside the United States.

On March 8, 2011, the FAA published an interim final rule, request for comments (Amendment Nos. 21-94, 25-133, 121-354, 129-50; SFAR 111) on security considerations for lavatory oxygen systems (77 FR 12550). The interim final rule addresses a security vulnerability and is needed so the affected airplanes can continue operating until the non-compliance to airworthiness standards and operating rules is resolved. We sought public comment on the interim final rule even though it became effective upon publication. This action responds to the public comments the FAA received.